My X H claimed to have a high IQ...
but he had a crappy attitude to go with it. He did horrible in classes he thought he was smarter than the professor in & then got mad at the company that woukdn't hire him because of his bad GPA after graduation. He said his GPA didn't indicate what he could do. He failed to understand that it did reflect his attitude perfectly.

One can have a high IQ & not have a lick of common sense. It took years after I left him to put the pieces together to really understand what his problem is that made the marriage totally incompatible......but IQ definitely means nothing in the real succes in life of a person. How you relate to others & the attitudes you hold have a much more important role in that success.