I came up with a new saying:
“You wouldn’t bake a cat just because it jumped into the oven.”
It means that just having a really, really good opportunity to do something awful is not an excuse to do it. That it isn’t enough that you never go out of your way to do evil, you’re also supposed to go out of your way to do the right thing, even in situations where the wrong thing to do would be extremely easy and profitable, and passively allowing it to happen would be easier than going out of your way to do better than that.
Capitalism runs on cat ovens.