No two weird people are alike. What makes "good" weird? What makes "bad"?
One of my classmates this quarter has an unspecified disability, known in sophomoric school language as "being weird". He is clearly bright, able to process and retain information and to make associations as well as a "normal" human being. Socially, however, he is utterly handicapped. He seems not to be aware of a number of social conventions, such as the fact that one is not supposed to speak up in the middle of class even if one has a pertinent question or comment, or that one is not supposed to complain loudly upon hearing of an unpleasant assignment, or that one is not supposed to loudly tap one's pen against one's binder while the professor is lecturing. I can't tell whether he was never told these things and is incapable of inferring codes of behavior from experience, or he is just incapable of processing such information. He is not a bad kid, and I am sure he means no harm. Yet the class (me included) seems to cringe and want to hide every time he speaks up.
The contrast with Laethan is exceptionally telling. Laethan is not even half as bright as my classmate as far as abstract information is concerned. Yet Laethan's social skills are stellar. He is manifestly kind, funny and friendly, remembers people's birthdays, jobs and marital situations, and everyone loves chatting with him. Even though Laethan often doesn't make sense, nobody feels that Laethan has done or said something inappropriate. Even though my classmate often does make sense, people feel that his mere presence in the class is inappropriate.
My classmate's disability has rendered him more useful to society than Laethan. Yet Laethan's disability has rendered him pleasant. It's funny that we prefer pleasant over useful.