Earlier quoted context omitted.
Curiously enough it's more difficult than you'd think. According to Sports Illustrated, within five years of retirement 60% of NBA players go bankrupt (although I'm not sure how reliable the source is).
When you have a hundred extended relatives reaching out for help, combined with scam artists trying to talk you into "investments", it's easy to go broke.
If I made ten times what I do, I'd probably be buying $500-$5000 gadgets just as frequently. If $100k didn't mean much to me then I'd probably buy a Tesla. If $20M didn't mean much to me then I might become a space tourist.
A more financially responsible person than myself would be likely to remain more responsible as they scale up, and a less responsible person would likely remain less responsible.