Most organisations frame DEI as a programme. A team. A set of policies owned by a Chief Diversity Officer who reports to HR. And on paper, that sounds responsible. In practice, it creates a quiet but dangerous illusion: that inclusion is someone else’s job.
The data tells a more uncomfortable story. Employees who strongly believe their company values diversity are 84% engaged. Those who strongly disagree are at 20%. That 64-point gap is not a DEI team problem. It is everyone’s problem. And closing it requires something that no DEI policy document alone can mandate: genuine, sustained, cross-organisational collective action.
This article is about that gap. It examines why inclusion stalls when it sits in a single department, what the psychology of group behaviour tells us about why people stay silent even when they know something is wrong, and what organisations can do right now to shift from performative commitment to real, coordinated change.
Collective action is not a synonym for protest or social movement, though both are expressions of it. At its core, collective action is the coordinated effort of individuals working toward a shared goal that none of them could achieve effectively alone. It is the mechanism by which individual intent becomes structural change.
In an organisational context, collective action looks like this: a manager who actively advocates for a colleague from an underrepresented group in a promotion conversation. A team that calls out a biased hiring shortlist before it becomes a hire. A finance leader who scrutinises pay equity data and actually changes compensation rather than commissioning another report about it. Employees across every level who treat inclusion as a daily practice rather than an annual training obligation.
For a foundational overview of how collective action works as a social force, including its theoretical frameworks and historical applications, read Collective Action: Understanding Its Role and Importance on Diverseek.
The question this article addresses is more specific: why does collective action so often fail to show up inside organisations, even when the stated commitment to inclusion is high?
There is a well-documented phenomenon in social psychology called the bystander effect. First studied by John Darley and Bibb Latane following the 1964 murder of Kitty Genovese, the research showed that the more people who witness an event, the less likely any individual is to intervene. Responsibility becomes diffused. Everyone assumes someone else will act.
The same dynamic plays out in workplace inclusion every day, at extraordinary scale, and with no cameras to document it.
A colleague makes a dismissive comment about a coworker’s accent in a team meeting. Everyone notices. No one says anything. A hiring manager overlooks a qualified candidate from an underrepresented background without consciously acknowledging why. A senior leader interrupts a junior woman five times in a one-hour meeting and nobody names it. Each of these moments is a collective action failure – not because everyone present is bigoted, but because the psychological conditions that prevent intervention are operating exactly as Darley and Latane described.
A 2024 study published in Trauma, Violence, and Abuse analysed 49 bystander intervention programmes across academic and workplace settings. The research found an overall effect size of d=0.25 for bystander interventions, with the most effective programmes being those that enhanced knowledge, self-efficacy and coping skills. Crucially, smaller group contexts produced better results than large-scale training, suggesting that inclusion behaviours are built through practice in specific relationships and contexts, not through company-wide webinars.
A separate study from Jennings et al. (2024), published in a scoping review on bystander intervention and workplace inclusion, found that fostering an inclusive environment actively encourages people to intervene, because it reinforces social norms that support engagement. In other words, the culture itself either gives people permission to act or permission to stay silent. And culture is a collective creation.
In 2024, 83% of employers had implemented DEI measures, up from 67% in 2023. Yet Culture Amp’s 2024 Workplace DEI Report found that employees’ lived experience of inclusion had not kept pace with those commitments. The gap between policy and experience is not a mystery. It is a structural consequence of treating DEI as a function rather than a shared responsibility.
Consider these data points together:
The return on genuine inclusion is enormous and well-evidenced. The reason those returns remain elusive for most organisations is not a lack of intent. It is a failure of collective ownership.
When DEI sits in one team, it becomes that team’s problem to solve. Line managers treat it as an HR matter. Senior leaders treat it as a comms and reputational concern. Individual contributors treat it as something they observe from a distance. Nobody experiences themselves as the person whose daily choices either advance or undermine the goal. That is a collective action problem, and it cannot be fixed by hiring another Head of Diversity.
For a deeper look at how unconscious bias operates at the individual level and undermines inclusion without malicious intent, read Unconscious Bias: What It Is, Why It Matters, and How to Actually Address It.
Understanding why collective action fails is the first step to enabling it. Three forces are consistently at work in workplace contexts.
When everyone is responsible, no one is responsible. This is Darley and Latane in corporate form. When inclusion is framed as a company-wide value without specific ownership at the team, manager and individual level, people reliably assume the next person is handling it.
The solution is not more awareness. It is specificity. Who is responsible for reviewing the composition of this shortlist before we proceed? Who is responsible for ensuring this meeting format includes people who tend to be talked over? Named responsibility, attached to specific moments and people, breaks the diffusion.
Research published on the psychology of bystander behaviour found that individual fear of social embarrassment is among the strongest inhibitors of intervention. In a workplace context, this translates directly: calling out a biased comment carries social risk. Questioning a hiring decision carries political risk. Raising pay equity concerns carries career risk. People perform a real-time cost-benefit calculation, and in cultures that have not explicitly normalised these interventions, the perceived cost of speaking up regularly outweighs the perceived benefit.
This is why psychological safety is not a soft concept. It is a hard operational requirement for collective action to function. Without it, people have the knowledge to intervene and the desire to do so, but the environment suppresses both.
Pluralistic ignorance describes a situation where every individual privately disagrees with a norm but publicly complies with it because they assume they are the only one who disagrees. In inclusion terms: everyone in the room may know that a particular practice is inequitable, but because no one says so aloud, each person assumes their discomfort is personal rather than shared. The norm persists not because people support it but because the collective silence creates the illusion of consensus.
Training that names this dynamic explicitly – “you are probably not the only one who notices this” – has been shown to significantly increase willingness to intervene.
For a practical breakdown of common inclusion failures and how organisations address them, see Navigating Common DEI Issues in the Workplace.
Leadership shapes the permission structure for everyone else. When senior leaders visibly and consistently model inclusive behaviour – actively inviting dissenting views in meetings, sponsoring talent from underrepresented groups rather than just mentoring them, publicly acknowledging when decisions did not reflect the organisation’s stated values – they signal that collective action is both expected and safe.
The data backs the influence of leadership directly. According to McKinsey’s Diversity Wins analysis, companies where senior leaders are personally held accountable for inclusion outcomes are significantly more likely to see measurable progress. Accountability at the top creates permission throughout the organisation.
The boardroom is also where bias does some of its most damaging and least visible work. Read The Hidden Decision-Maker in Every Boardroom to understand how unchecked patterns at the top suppress collective progress.
Managers are the most consequential collective actors in any inclusion effort. They control who is on which projects, who gets visibility, who receives developmental feedback, how meetings are run and whose contributions are credited. Research consistently shows that the single biggest driver of employees’ inclusion experience is their direct manager, not the organisation’s DEI policy.
For the 51% of employers planning DEI training for managers through 2030, the most effective investment is not generic bias awareness training. It is specific, situational practice: how do you run a meeting that prevents the same voices from dominating? How do you conduct a performance review that accounts for the ways systemic factors affect outcomes? How do you sponsor someone whose path looks different from yours?
Individual contributors are not spectators. Every person in an organisation either reinforces or disrupts existing patterns through their daily choices: who they advocate for, whether they name what they observe, whether they interrupt the small moments of exclusion before they compound into structural inequity.
The research on bystander intervention is instructive here. Past experiences of successful intervention significantly increase the likelihood of future intervention. This means that the first time someone speaks up and is supported by the culture around them, they are more likely to do it again. And so is the person who watched them do it. Collective action builds momentum through individual visible acts.
For guidance on making the language of everyday workplace interactions more inclusive as a form of active collective participation, read Inclusive Language at Work: What It Is, Why It Matters, and How to Get It Right.
The political and corporate retreat from explicit DEI commitments in 2025 has created a specific challenge. When organisations reduce the visibility of DEI work under legal or reputational pressure, the work does not disappear. The inequities it was addressing do not disappear. What disappears is the formal structure that was attempting to address them.
In this environment, collective action at the human level becomes more important, not less. When DEI offices close and Chief Diversity Officers are reassigned, the question of whether a culture of inclusion persists depends entirely on whether enough people in the organisation have internalised the behaviours and norms that produce it.
Closing equity gaps in the U.S. workforce alone is estimated to add trillions of dollars to lifetime earnings across the economy. That is not a DEI talking point. It is a labour market and productivity finding. The business case for inclusion has not weakened. Only the willingness to publicly name the framework has.
Organisations that have built genuine collective ownership of inclusion are significantly more resilient to this kind of external pressure, because the work is not housed in a department that can be defunded. It is distributed across the fabric of how the organisation operates.
For a comprehensive look at what structural social justice work inside organisations requires beyond individual good intentions, read Social Justice in the Workplace: What the Data Says and What Leaders Must Do Now.
Vague commitments produce vague behaviour. Replace “we value diversity” with specific, assigned actions at every level. Who reviews this hire? Who audits this process? Whose job is it to notice who is not speaking in this meeting?
Psychological safety is not the absence of challenge. It is the presence of a culture where naming problems is expected and rewarded rather than penalised. Measure it regularly. Tie leadership evaluations to it.
Awareness training tells people that bias exists. Intervention training gives them the scripts, practice and confidence to do something about it in real time. The research is clear that behavioural change comes from rehearsed responses in specific contexts, not from knowing a definition.
When diversity metrics are shared internally and tied to team-level outcomes rather than only reported in an annual CSR document, they become the business of every manager rather than the HR team’s annual story. What gets measured at the team level gets owned at the team level.
People repeat what gets recognised. When leaders publicly acknowledge moments where someone spoke up, sponsored a colleague or disrupted a biased process, they signal that this behaviour is valued and expected. Recognition is the fastest way to normalise collective action norms.
For the foundational framework of building DEI programmes that are structured to succeed at the organisational level, see DEI Programs: 4 Essential Factors for Success.
The bystander effect tells us something uncomfortable about human behaviour: good people, in groups, stay silent more often than we would like to believe. The research on collective action tells us something hopeful: that the right conditions, the right norms and the right structures can change that.
Building an inclusive organisation is not a DEI team task. It is a collective task that requires every person in the organisation to move from observer to participant. That shift does not happen through a policy announcement or an annual training module. It happens through leaders who model it, managers who operationalise it, and individuals who practice it in the small moments that accumulate into culture.
The organisations that understand this are building something that no executive order or budget cut can easily dismantle. They are not housing their inclusion work in a department. They are distributing it across every relationship, every meeting, every hire and every honest conversation about what the data is actually showing.
That is what genuine collective action looks like. And it has always been the only version that lasts.
The Diverseek podcast aims to create a platform for meaningful conversations, education, and advocacy surrounding issues of diversity, equity, inclusion, and belonging in various aspects of society.