The problem isn't that they spend 5 years making fuck-you money.
The problem is that they don't realize that they can stop once they have it.
The problem is that they don't realize that they can stop once they have it.
I do know of several founders whose first company was a nasty ad-tech company (spyware), and after making their millions, their second company is a much more honorable digital health company.
You probably can find examples where such people can keep on creating nasty companies, so it would be interesting to see if there was a research about whether or not people pursue more honorable goals after they get lots of cash.