What is a good proverb in response to "two wrongs don't make a right"?

To provide the reference for Peter Shor's comment, now removed:

fight fire with fire

to fight against an opponent by using the same methods or weapons that the opponent uses

[Merriam Webster Dictionary]

Two wrongs don't make right, but three lefts do.

evil prospers when good men do nothing

This saying appears in various forms. Here's one

Edmund Burke, one of the foremost political speakers of 18th century England, said: "All that is necessary for the triumph of evil is that good men do nothing."

https://www.crossrhythms.co.uk/articles/life/Evil_Prospers_When_Good_Men_Do_Nothing/37074/p1/

To be politically correct I suppose some would change it to, "evil prospers when good people do nothing"