I know a guy like that. His take on it is that it's a combination of social pressure and families: families are often more expensive than any of ivankirigin's doing things to extremes, and they get more expensive as you put them in richer peer groups. I suspect that if you were single, being worth $10 million would sit with you just fine, even if you wanted to do extravagant things.

(Not that that would make me choose to be single, though.)