Hitler was an artist, didn’t drink nor smoke, was a vegetarian who loved animals, particularly dogs, and was said to be very kind to the children of his colleagues.
There, I said it!
And Bin Laden built hospitals!
Very sorry to correct you, but he did indeed have a beer now and then, and a bit of meat here and there. He simply didn’t like meat too much, or alcohol, for that matter. But he liked little children and was okay with dogs.
Stalin, by the way, was also friendly to children, and, if he was in a pleasant mood, he could be downright charming, just like Hitler.
Stalin also had a phenomenal eidetic memory. Even after years, he was able to not only recognize everybody by face and name, but he also clearly remembered what he had been discussing with them, often word for word.
Human beings, even monstrously, satanically evil ones, are not as duo-dimensional as comic-book or movie villains, which are more like cutout characters than like real humans.
Pegleg Pete and Lord Voldemort are memorable characters, though not particularly realistic ones.