You may enjoy these two reads:

https://www.newyorker.com/magazine/2017/01/30/doomsday-prep-for-the-super-rich

Always enjoyed this gem:

Huffman has calculated that, in the event of a disaster, he would seek out some form of community: “Being around other people is a good thing. I also have this somewhat egotistical view that I’m a pretty good leader. I will probably be in charge, or at least not a slave, when push comes to shove.”

This one is also interesting:

https://onezero.medium.com/survival-of-the-richest-9ef6cddd0cc1

Relevant to the thread:

Finally, the CEO of a brokerage house explained that he had nearly completed building his own underground bunker system and asked, “How do I maintain authority over my security force after the event?”

[...]

This single question occupied us for the rest of the hour. They knew armed guards would be required to protect their compounds from the angry mobs. But how would they pay the guards once money was worthless? What would stop the guards from choosing their own leader? The billionaires considered using special combination locks on the food supply that only they knew. Or making guards wear disciplinary collars of some kind in return for their survival. Or maybe building robots to serve as guards and workers — if that technology could be developed in time.

They live in a different reality. These questions are normal for them. Not all of them, obviously, but the doomsday prep shit is aaaallll over Silicon Valley and the rich in general.