My favorite is Bog king from Strange Magic - Has a song talking about how evil he is. But all he does is prevent the spread of dangerous mind control magic, and quarantine people under the effects of said magic. Yes he greatly annoys people doing so, but honestly? If I get hit by a love potion, please quarantine me.
And because he’s such a great dad, Vanessa gave him a basket full of recreational self destruct buttons for fathers day.
A thoughtful gift to a mad and self-described evil scientist.