If machines start doing all of the work, even much or most cognitive work, then I think this has to change. Meanwhile look at Nordic countries for example. Not communist, rich, low inequality by design. They were the pioneers btw in social democracy, in which they all live. Interesting, "always been history" is actually not right, or at least, also, it's "not been pre-history" is right because early humans before and up to us as homo sapiens, did indeed from all evidence I've seen have dramatically greater social equality and sharing economies. Our current state is the less "natural" in the sense of being out of tune with our instincts.