Achieving consensus among groups is a pretty important human ability from an evolutionary point of view. The vast majority of us are hard wired not to rock the boat - and the group is primed to punish those who do.
Think of the treatment of whistleblowers for example. They're almost always treated appallingly, no matter how justified their position is.
So optimal functioning of society is where most people are quick to conform and a few contrary types are there to call out when things get out of hand. Those people probably suffer as a result of doing so.
But in this particular instance, there are other factors at play. One very important one is that we've lost a sense of strong moral frameworks that everyone has in common, so we have people coming at this from very different viewpoints. There is also huge corruption and betrayal of trust in the medical profession.