Calling "wealth accumulation" (Frank's term) "the closest thing they have to fun" betrays his own bias.
It's quite possible that the work is just inherently fun. My work is, to me; sometimes I do it for free.
This reminds me of an article from the NYT probably 25 years ago when the author was astonished to see Mercedes' in the parking lot of Costco. "If you can afford a Mercedes why would you go to Costco?" Perhaps you prefer to shop there and don't give a shit about the old fashioned sumptuary habits.