Xi Jingping consolidated power by rallying people around the flag of anti-corruption. Same with Putin. Obviously, neither of those people is anywhere close to non-corrupt.

Don't rally around anti-corruption. Rally around accountability, oversight, openness, and balances of power.

Doing things right is harder than calling out others for doing things wrong, and plenty of horrible corrupt people are all too happy to call out wrong-doers. Support people who do things right, not people who complain about others doing things wrong.

Stand with whistle blowers, and stand against anyone who seeks to punish them. The correct way to blow a whistle is as loudly as possible for all to hear. Anyone who says otherwise is driven by profit, and profits being wiped out IS the most appropriate punishment for corruption.