Notice whenever dictators from history are mentioned in the media, they're almost always referred to as "evil dictators," or "violent dictators." And yes, it's true that many of these men committed unspeakable atrocities, including genocide, to their own citizens.
But haven't you ever asked yourself the question: If these guys were so awful, how did they ever get elected?
Well, you might respond by saying "Well, they weren't elected. They came to power in a violent coup." OK, that is certainly true for many.