All the best people are "odd". "Exceptional" is synonymous with "different", which is synomymous with "odd", if you think about it, so it just follows.
The point is it simply depends upon viewpoint.
You can't be exceptional without being different. And you can't be different without some people regarding you as odd. So why care at all.
Name ten of the greatest names you can think of: I'll bet anything lots of people who knew them considered them odd.