That's pretty low. Why not 50 million, or 5 billion?
More money and you’re probably spending it on servants and lavish housing or entertainment. Those things might be cool, but it’s mental overhead that I imagine a lot of people just don’t want to deal with.
Realistically, I’d live the life I want with $5 million. I’m an asshole but I’m not the kind of asshole who wants to be a billionaire.
Sounds like a modest, reflected asshole to me ;)