I’m guessing because oligarchic corruption is what’s most effective at getting the state to work against the majority’s interest. Small time corruption where you have to insert coin here or there to get things moving but you don’t get power over the state can’t do that. It only introduces inefficiency. Oligarchic corruption gets the state to represent the oligarchy’s interests and since those are in contradiction with the interests of the majority, the states stops representing it. That includes taking control of any form of democracy that may exist. In the US the oligarchs have obtained control over the state and the democratic system. It’s why there are never good options to vote for, but turd sandwich or a giant douche. I don’t know enough about China but there are signs that the state is not owned by its oligarchy. E.g. when Jack Ma wanted to make a private bank / payment system that isn’t controlled by the state, he took a vacation for a while and returned a changed man.
Interesting. I’d have expected this to include more Western countries. Or do they expect we’ll notice and complain?