Popular dumb shallow people, unpopular smart geeks.

You mistake what people signal with their inherent intelligence. Bill O'Reilly doesn't behave as a geek. That change that he's smart. It's like the mistake of thinking that being good at chess is about intelligence.

Unfortunately at the moment I don't find the link to the studies about IQ and social skill, but I think we had previous LW discussions towards IQ positively correlating with social abilities in average society being well established.

I am not 100% sure what is a SAT is but if it is like a normal school test - memorize stuff like historical dates of battles, barf it back

It's not about having memorized information. SAT tests are generally known to be a good proxy for IQ.