strange. i've seen very successful people who seem to a) have no emotional intelligence and b) not a lot of other intelligence.
some assert themselves well, but i have no idea how they got into the position to be able to do that. all it takes is a series of strange gatekeepers saying yes and perpetuating and we are where we are. you can't crack the system sometimes if you can't get in.
and yet, they definitely have some kind of skill for it to work.
also, there is actually something to the idea that one poster laid out that intelligence breeds jealousy. jealousy is a particularly strong driving force in human behavior in my observation. it can be linked heavily with inferiority. if you value yourself, you're okay with someone being better at certain things than you are, but otherwise you can become aggravated.
there's certainly too much "i'm better than that" going on these days. it's probably true (and i engage in it too), but you have to get off the couch and try to show that. some do waltz through life, but plenty work darn hard.