Most of US culture has absolutely zero interest in clever people unless they're also making money and/or running a business. There is no situation where IQ and abstract intellectual output are valued purely for their own sake and not for their financial productivity - not even academia.
Which means the real problem is the way that "business" has become the de facto state religion - in the sense of being the ultimate moral arbiter of personal value and the one true absolute definition of how "good" people are recognised.
Hard work and money. Or money at least.
Trump's success is based on a weird identification - the belief that Trump represents the interests of the 99% because he's a non-intellectual plain speaker who says what he means and means what he says using language that everyone can understand.
That makes him "one of us" to many people, even though of course he's nothing of the sort.