I have never been rich, so I can't speak on how the psychoses don’t impact that population. But for the poor (which I can speak on because I have been in that category and I consider myself the working poor per se), you’re absolutely right. When you’re poor it’s just another day. You have to get up, and go to work to scratch and survive. Life is hard. The struggle and grind are daily, but you know this. You live it. You’re accustomed to it. The collective psychosis you speak of doesn’t impact those at the top unless they have a sudden hard fall from grace, or if they are at risk of losing wealth that could make them poor.
Collective psychosis doesn’t impact the poor because they are already at the bottom of a society that has forgotten them. They have learned to be comfortable there because capitalism won’t allow them to get out. There is very little fear in their lots in life because there are no unknowns. YOU KNOW you have nothing. Most notable, they know they don’t have far to fall when the world starts to crumble.