Kind of funny the goal of crypto was a total new, decentralized, democratic system, and what we end up (to solve the scale issue), is yet another class system where you can vote only in proportion to your wealth.
Blockchains that allow protocol changes via votes are an option, and how you quantify votes is a parameter, but PoS is not tied to being a government token, and 'votes' on forks (its really not a vote as both protocols exist after a fork) are made by large and small holders alike. It has nothing to do with amount of currency owned.
Staking better aligns incentives when compared to mining and most other alternatives.
Compared to PoS where the biggest incentive is to be nice.