But incidentally, someone's ability to make a lot of money (or worse: inherit it) doesn't imply that they have any preferential ability to spend it in a way that benefits society. And when someone has the unchecked power to spend massive sums of money on themselves in ridiculous and frivolous ways, it's pretty clear that they have too much power. Because whoever should be making those decisions should certainly not be doing that.

Bill Gates rented a yacht for $5M/week. How is this not a clear waste? How much suffering could have been avoided at that cost? At least put it in some kind of public trust where such behavior can be properly considered corruption.