The Misunderstood Bad Guy?

All right, so I was sitting in some class this week, having my syllabus read to me (as if I'm incapable of reading it myself... I'm not in college or anything) and a thought popped into my head: why do fantasy bad-guys always live on the outskirts of civilization or straight-up in the middle of nowhere? The protagonist arrives from wherever (many times from our world) and everything is happy in la-la land, except for this terror in the deep whose entire goal in life is to maim, slaughter, or otherwise control the entire population. And they almost always live in the middle of nowhere. Is this a choice said bad-guy (hereafter known by the name "Jerry") made or was the happy society so bigoted and unaccepting that they socially drove Jerry away to hatch plans of revenge, retaliation, and carnage? Or is it that Jerry's parents lived out in the middle of nowhere and that's where he grew up and having been secluded his entire life he went crazy and took out his parents (because really, when have you ever heard of a bad-guy's parents other than in Harry Potter? It's like they appear out of the ether) and then started to hatch plans to take over the world? Or maybe evil characters naturally love the serenity of living near nobody, in some hovel hundreds of miles from the nearest market. Perhaps Jerry's just really into hunting and while out hunting one day he decided his incredible eyesight and claws ought to be used for something other than catching deer and then decided he'd rather obliterate society as his world knows it. I dunno. And I don't really know how Jerry ever convinces his minions that any of it is really a good idea, unless they've wrongfully been driven from society for their ugly looks and unfortunate desire to murder and pillage every so often. I guess that's always a possibility, one of those NIMBY (not in my backyard) kind of things. Everyone WANTS to be accepting, unless the murderous creature lives near them in which case they politely ask it to leave using pitchforks and torches. I guess I'd be POed if I were one of Jerry's minions, too. So I don't know if I'll ever find out why Jerry's hiding off in the woods, gathering troops, planning the destruction of the world. Maybe it's all a big misunderstanding. I suppose I'd have to ask Terry Brooks or J.R.R. Tolkien if I ever want a knowledgeable answer.

Yeah, so anyway, I really wish teachers would just let me read my own syllabus.