The problem is that china's justice system is a farce. Even if the charges were real, you don't know how much of it gets a blind eye (as long as you're in favor with the party) and whether the accused was being singled out for political reasons. Is it typical for people to be charged with corruption, imprisoned, but not acknowledged by the government? How would you like it if something like this happened in the US? eg. AOC (or the republican equivalent) getting sent to ADX Florence because she accepted an unauthorized gift of $60 (according to google the limit is $50), but it turned out that Pelosi/McConnell regularly received gifts of $100+ without any punishment?
That's but just a show. Look at the net worth of Pelosi family during her tenure. No one is going to be hurt by this ridiculous rule. It's just a show piece to hide the corruption happening in the political system.
The difference is just that, in China, it's much easier to actually throw corrupted politicians into jail, but mostly impossible in US.
