I used to be a poor student, and while I had a few indulgences I was frugal by virtue of being unable to afford some things. Now I have a job that makes plenty of money, and I spend it on things I would have once considered a poor value or even outright wasteful (uber instead of public transit, order something on Amazon I am unlikely to use).

I imagine if I had much much more money, I'd spend it on things I consider wasteful now.