Well, i can't think of a better analogy to say that you can't offset doing bad things by doing good things. The karma system some games use (e.g. Fallout 3 where you can nuke an entire city that puts your karma in negatives and then give fresh water to beggars to reset your karma) was what i was reminded of.
Musk didn't commit any genocide (that i'm aware of) but that wasn't what i wrote. The point of my comment is that you can't offset doing -what some people perceive as- bad things by doing -what some people perceive as- good things later.