I have a huge thought: if Satan punishes people who are bad, doesn't that make him good?
Satan's Moral Dilemma
Explanation
Explain Bear
Listen up, buttercup! The joke plays on the common idea that Satan is evil because he punishes sinners in Hell. But, the joke asks, if those people are bad, isn't Satan actually doing something good by punishing the wrongdoers? It's a silly thought experiment.