That's not how equality before the law is supposed to work. You're describing corruption trials as an occasional bone thrown to appease the masses.

How do you know the people who get sentenced in these trials are actual culprits, not just scapegoats the CPC wants to get rid of? There is no transparency or public records, and the judicial system in China is not independent of the government. The accused are effectively pre-sentenced.

Just because one approach is different from the rest, does not mean it is ill-intended or evil. There is no reason at all for any government to do something unpopular with majority of people.

This approach is essentially a tyranny of the majority interpreted by a single party that controls all branches of government. In such a system, who protects the minorities and those who would like to see a different political system? Or are they "collateral damage" for a greater good -- the eggs one needs to break to make an omelette?