Mr.Dupin or the Black Hat is right. He must be a black hat hacker or frosty the snowman. Just kidding, he's a great guy, I think. I'm pretty sure, but I've never talked to the guy. Point is he is good at giving feedback. To make them a megolamaniac you have to make them not care about anyone else, selfish, and too bold. Whereas a mercy killer generally thinks their doing the right thing, and will appear as normal, nice, and charismatic to the average person.