I'm an 80/20 kind of person. I catch on quick, I'm good at ignoring details, and can usually hammer out a version 0 of something very fast. Then I get bored and don't want to do the hard work of actually making something useful. I've found that outside of looking clever in new situations, this approach really hasn't gotten me very far.
Universally, I have seen really successful people do the extra work for the incremental gain. Competition and success happens at the margins, so it's not surprising that is where the effort needs to go.
Incidentally, this is a justification for "top tier" employers that are looking for perfect grades or test scores. These are a strong signal not just that someone is smart (which in itself isnt to rare or exciting) but that someone is willing to do what's needed to eke out incremental gains at the extreme margins, which is a much more important quality in competitive businesses.
Edit - something like this is mentioned in Haruki Murakami's "Norwegian Wood". There is a character who was a natural musical prodigy and could sight read a song and play it well very quickly. But she could never be a competitive musician because she didn't want to put in the rest of the work to go from good to perfect.