I feel like school doesn't test actual intelligence, and people should stop using that as a basis of measuring intelligence. Just annoys me how some people always say the smartest people they know are the ones with the highest grades. There. is. more. to. it.
I agree with you. Being intellectual does not equate to the type of education or grades you receive, it is more for the amount of knowledge that one possesses pertaining to the relevant topic. A "smart" person can flunk while a "dumb" person can pass. They're not mutually exclusive. The "agreeable" perception is that knowing a bunch of things makes one intelligent and while there is truth to it, it perpetuates the notion that you need to be a cornucopia of information and skills.