You can do much worse things in a PoS system since power in the system is tied to the asset (ETH). Ethereum DeFi toys are hacked on a daily basis and millions upon millions of dollars worth of ETH is stolen.
It's exactly why the DAO hacker was censored -- they controlled more ETH than any single account in the system.
It's exactly why the DAO hacker was censored -- they controlled more ETH than any single account in the system.