I'm a bit of a sociopath who gets paranoid at the drop of a hat, but it doesn't really show in day-to-day life. Sure, I may hate everyone and not particularly enjoy social interaction unless I've known them for a while (aka, my handful of friends), and even the wimpiest things can scare me out of sleep for days, but you probably wouldn't notice unless you'd spent lot of time around me. I've learned to hide fear and hate in public which can occasionally succeed in making me pass off as normal.
Someone mentioned people thinking it's a good thing to have soeme kind of mental disorder. I don't understand it either. People for some reason think it is a compliment to be insane as opposed to sane, but I don't think they really understand the meaning of it. I guess it's just people rejecting the idea of being "normal" because they think sane and boring are identical things. Oh well, nowadays "insane" means disagreeing with people or saying something random once a week.