This, "If you have enough, why does it matter if someone else has more" argument doesn't really hold. Yes we can make more TVs and phones so that everyone can get one, but then get to things like centrally located housing, where there is a limited supply. It matters a lot if you want someplace to live, and there are thousands of very rich people trying to out bid one and other for the same space in your city. This is why housing is no longer affordable.