Everyone should examine his behavior. I would say to do so "carefully" but that's not required because--although screamingly obvious--it goes unnoticed.

Imagine this group of people was all up in your grille like that. The subject here is irrelevant. Don't you think that would be quite upsetting? A loud and aggressive group like that is incredibly rare in human experience. Customer service personnel only deal with irate people in ones and twos, and police generally with people that are only irate at each other.

You would very reasonably fear for your personal safety. Is one of these nuts going to take a swing? Is one of them going to pull out a gat (it's Nevada, after all)? And there's nothing you could do about it except try to separate yourself from them.

But look at how he acts. They could all be discussing which bar to go to for a drink after the meeting. He is not in the least apprehensive. How is that possible?

I would say it's because he's a psychopath. He isn't susceptible to shame or embarrassment. Further, as a predator, he has judged that none of these "normies" poses the least threat to him physically, and he's correct about that.

All this is to highlight that there are people among us very different from you and I (well, from me, anyway) and yet that stark difference is never seen.