I exclusively build stuff that I think is cool for me and my friends but I have little drive to market these things and plus they are designed to be completely free forever so I don't think I'll ever be a billionaire.
I suspect they may envy the laymens position in life eventually. You loose alot becoming wealthy in the monitary sense. There are many ways to define richness and wealth beyond what society defines it as.
As they say, more money more problems.