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.
Maybe I’m confusing the two, but I always thought Crowley from Supernatural was an evil demon with a streak of humanity. His character arc is a redemption arc as he develops that tiny sliver of humanity