Novaura - Employee Benefits & Insurance Insights

Breaking the Echo Chamber: How Similarity Bias Stifles Growth at Work

Written by Novaura | 4/24/25 10:53 AM

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Most leaders don’t mean to surround themselves with people who think and act the same way, but without realizing it, that’s often what happens. Something feels familiar, and we trust it more. That sense of comfort shows up everywhere, and it makes us feel safe and aligned, yet it quietly blocks progress. 

One of the biggest drivers of this comfort is something called similarity bias. It’s the tendency to favor people who seem like us. Maybe they grew up in the same type of town, have a similar personality, talk with the same communication style, or approach problems in a familiar way. It gives us the illusion of alignment and trust. 

However, when everyone thinks and acts the same, we stop questioning things and challenge each other, and that’s when the echo chamber begins to form.

How similarity bias shapes who gets heard 

Formal roles and responsibilities exist inside every workplace. But an invisible layer of social dynamics shapes who gets opportunities, who feels safe speaking up, and who gets looped into important conversations. 

Similarity bias helps form what is often called in-groups. These are the people whose ideas are naturally welcomed. Their perspectives are affirmed, their mistakes are seen as learning opportunities, and their suggestions move forward quickly. If you’ve ever seen someone pitch a half-formed idea that gets taken seriously while another person has to back up every point with research to get a seat at the table, you’ve seen this play out. 

In-groups often share similar educational backgrounds, industry experience, or personality traits. In a workplace full of extroverts, the quieter voices may be overlooked. If most of the leadership team comes from the same previous employer, others may feel like outsiders, no matter how well they perform.  

Why people adapt instead of speaking up 

Once employees start noticing these patterns—and they always do—they begin to adapt, and not always in ways that are visible. People learn what kinds of ideas get traction, which personalities get praised, and which topics are better left alone. So they adjust: 

  • Someone who usually questions assumptions might stay silent.  
  • A team member who’s more direct might soften their language to fit in.  
  • Someone from a different cultural background might avoid drawing attention to how their perspective differs.  

These adjustments are rarely written down or openly discussed. Over time, they dilute uniqueness, and conformity sneaks in because people don’t feel like their voice has value. 

It’s easy to assume that a quiet team is an aligned team. However, alignment without challenge or a diversity of opinions is often just silence.  

Why this pattern feels normal 

This need for sameness is happening at work and reinforced every day through the media we consume.  

Social platforms and algorithms are designed to feed us more of what we already engage with. After a while, this shapes how we see the world. We start to believe our view is the norm, because it’s all we’re shown. And when something different pops up, it feels out of place or even wrong. 

At work, we start to unconsciously trust people who align with our same worldview. We lean into decisions that reflect what’s familiar and can overlook or even dismiss good ideas because they don’t sound like what we’re used to hearing. 

What leaders can do to open the room back up 

Change these patterns by first recognizing and noticing. Take a look around your meetings. Who gets to speak without interruption? Who gets follow-up questions that move their idea forward? Who gets skipped over entirely? Create space for disagreement without punishment and encourage collaboration.  

You may need to slow down a discussion to make sure quieter voices are invited in, check yourself when you naturally lean toward someone who frames things the way you would, or ask someone outside your core team what they see that others might be missing.  

Hiring and promotion decisions are also worth examining. Are you rewarding comfort or potential? Are you prioritizing sameness or building something stronger by bringing in people who think differently? 

Culture is what you allow 

A lot of companies say they want different perspectives and open dialogue, but the way people behave and interact with each other actually creates the culture.  

If meetings reward agreement, people will fall in line. If only a few voices consistently move the conversation forward, others will step back. If recognition only follows those who align with leadership styles, team members will either blend in or start to check out. 

Workplaces shift when leaders pay attention to how the team really functions and take deliberate steps to make it better. 

 

Content published by Q4intelligence 

Photo by mangostar