PoS is literally get paid for doing nothing but owning lottery tickets.

Normal capital flow with bonds, stocks, etc allow a legally binding agreement for mutually beneficial transfer of capital between parties.

Well, they get paid for putting that capital at risk and for keeping it locked into the system to provide consensus. It's a kind of a service.

Except only the top few largest "stakers" are paid, others are either disqualified entirely for being too poor to stake, or will not recieve block rewards for being statistically irrelevant.

PoS is a lottery with reusable tickets. Winners get more tickets.

PoS is an idea. There are implementation that reward everyone equally for the amount they put it (like semux)

interesting, thanks for sharing