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.
Well, he never says he’s evil but is certainly seen as a villian: Dr. Victor van Doom. He’s actually glimpsed all possible timelines of humanity and only the one where he reigns is not ending in destruction. https://qph.cf2.quoracdn.net/main-qimg-4d9668819558c73a8fda43cd4bc0ef0a-lq He is also loved by the people of the country he does rule. And when he had indeed managed to rule the world, it was a time of peace. I mean, mind control peace (he amplified the power of Kilgrave the Purple Man) but still.
If you’re asking yourself why Kilgrave didn’t simply control him, Doom is one of the few people with so much natural willpower that Kilgrave’s powers don’t work on him: https://i.pinimg.com/originals/d5/e8/c8/d5e8c8ee71120993b8616128b08a6a22.jpg
Maybe I don’t know enough Doom lore but he seems not evil in the same way as Thanos. Sincerely believes that his way is the right way and the ego to try to force it on everyone else.
Or maybe Doom is not evil in the same way as saying Nazis made the trains run on time
Doom does a genocide every other month. There’s something to be said for earnestly believing you’re the good guy but you can say it about Hitler too.