I see the role of society to be to provide for its member's needs[1]. While I don't think "needs" means that everyone gets a Ferrari and a Yacht, I do think it goes beyond just what one requires to be alive. In particular, due to America's size and diversity, having flexibility in where one lives is an important part of being able to choose one's lifestyle.[2]

[1] At least until we arrive at some sort of Star Trek level of technology, no society is going to do this perfectly, so when I say "functioning society" I mean one that more or less provides for the vast majority of its citizens and provides some sort of safety net/second chance for people who do fall through the cracks.

[2] This is much more "wishy washy" and hard to quantify, but I'd say that in a functioning society everyone would be able to, in a general sense, live the sort of life that they want while providing for themselves and their family. I mean this in broad strokes such as wanting to live in a cosmopolitan city/near the beach/near mountains or wanting to be able to seriously practice art/music/sports (although not necessarily as one's day job).