Clarey has a book called the curse of a high IQ...it's...amusing, but deals mainly with the +2-3 sigma group.
His comparison (valid) is average : +2-3 sigma :: Forrest Gump : average.
His points are really not valid at the 4-6 sigma range, as there really isn't a valid syllogism.
Average : +4-6 sigma :: IQ of 10-40 : average.
Since that low level isn't really "person" any more, the comparison in terms of describing the interaction breaks down.
Everyone I know in the 4-6 range I think is LESS frustrated with average people, as they are smart enough to realize -everyone- has somethi to add, and then just interacts as appropriate, and puts the other 80-90% of clock cycles to something else.
Speaking personally, I find +2 sigma folks -more- frustrating than average...as +2's are neck deep in the bad part of the dunning-Kruger effect, while average folks and 3-4 and more sigma have realized what they don't know.
Also, why be an introvert, learning super fast means the more different people you interact with, the more you can learn.