Hey doc what do you think the problem might be?
Ook!
That bad huh. What do you suggest I do?
Ook!
Great! I'll give that a try.
Or some type of Orang-utan Librarian who realizes that being a strong, worry-free ape who enjoys bananas is better than being a struggling wizard?
And there is a lot of comparing Intelligence to IQ, which is a completely arbitrary and culturally-specific test that doesn't measure raw reasoning. Why can't you have a genius-level Barbarian with absolutely no prior education and have an INT 6? He may be great at solving riddles he hasn't seen before, but won't know anything about Intelligence (History/Religion/Nature/Arcana) checks.
It's almost as if all Ability Scores for RPGs are mere abstractions that can be applied and interpreted in different ways...