Heck, going by the books and for all intents and purposes he also wanted to screw his granddaughter(Jessica, Paul's mother). The Baron is worse than a hedonist and a total hate sink.
You know those nasty storm troopers(Sardurkar or something like that) of the Emperor's who will burn down a village full of kids, puppies, and toddlers on the Emperor's orders. . .guess which way that army swing. Oh, and the reason why they're feared is because they're the Empire's absolute worst criminals to boot. Seriously the planet they live on is nothing but male violent prisoners.