Might be useful to ask a different question: What makes people happy? It's things like relationships, satisfying work, accomplishment. (and many, many more) Then the real question emerges: How many of those happiness 'sources' are made better by intelligence? What percentage? Relationships? Seems like no. Work? Also seems like no, lots of work doesn't make use of a high IQ that people enjoy nonetheless. Accomplishmen…
but there is a direct link! have you ever watched a Slam Dunk competition? people strive to jump the highest, and zero empathy is shown