Social media gets more engagement (and therefore more ad money) from people who are upset, so it intentionally shows you stuff that’s bad/stuff to complain about.

Also, it’s important to complain about stuff. Not too much, but definitely some. If people never complained about 16 hour workdays in poor working conditions, we’d still be doing that.

there’s tons of mechanisms to stop that from happening

There are tons of such mechanisms in the United States as well. Unfortunately the mechanisms essentially boil down to laws, policies, and norms. Doing an illegal action does not pull a lever that deposits you in jail. The whole system relies on the people in power choosing to do the right thing. That’s going to be a potential issue in any country with centralized power.