I don't think a person has to be in the billionaire range to be affected.

"Extreme wealth does a number on people's grasp on reality."

~ Amanda Marcotte

https://www.salon.com/2023/07/17/billionaires-arent-doing-great--for-their-mental-health-time-to-drastically-raise-their/

When do you think it starts to screw with some people's versions of reality? Maybe at even only few million for that one dude? Everyone's cut off point could be different, right?