In the book The Stone and The Maiden (which everyone should avoid) the evil princess who stole the throne from her nice sister would regularly have kinky sex while bathing in animal blood. Just because that's what evil sister's do.
Does Grand Moff Tarkin's decision to wipe out Alderaan count? It's a well-reasoned decision, of course ("Dantooine is too remote to serve as an effective demonstration"), but it's also frightfully cruel.
(ie, Vader didn't take a lightsaber to a puppy in order to use the puppy's blood to distill an illegal street drug that he would then sell to orphans in exchange for kitten carcasses, which I had a villain in one of my Action Movie d20 Modern games do in order to tell the players that he was evil).
Hand of Evil said:The Simpons, Mister Burns: "Release the dogs!"

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.