I don't argue that that's sometimes the case, but I wouldn't go so far as to say there's no correlation. Let me ask you then, these "brilliant people" you know/have known, what criteria did you use to judge their brilliance? This may or may not be the case, but consider whether you may have perceived them as brilliant because their thought processes mirrored your own. I know I've made that mistake in the past. I also know that I've done the opposite, where I've failed to recognize someone's intelligence because their opinions differed from mine. (An example of this would be how I feel about Jon`C. At first, I thought he was just an idiot, but I've come to actually respect his vast amount of academic knowledge, despite the fact that I still believe a lot of what I say goes over his head (and many others here) simply because we think very differently.)
I will also go on to say that I am the sort of person that you describe, but in a slightly different way. I do well in life; I have friends, I do well at my job, I'm happily married, I have a child, and I'm happy. But I don't "do well" at Massassi. I'm not very well liked, and people tend to not appreciate my humor (which, btw 90% of what I say is in jest, whether it's backed my my beliefs/opinions or not). Why? Because Massassi is a hobby. I just don't care about it enough to do a bunch of research on a subject I don't really care much about before I post. In the same way that a brilliant person may do poorly on a test because they don't care to study or pay attention to it, I do poorly at Massassi because I don't care to research or say things diplomatically. 95% of my posts are made between fights on World of Warcraft, not between articles on Wikipedia (or any other source of online knowledge). I bet though, that if we ever were to meet in person, without knowing each other, we'd probably get along, and we'd probably enjoy each other's company, even if you thought my sense of humor a bit odd, as most people do.
If you choose not to decide, you still have made a choice.
Lassev: I guess there was something captivating in savagery, because I liked it.