sure, of course intelligence ultimately helps you have a better career - with obvious exceptions noted - and companies value the insights that more intelligent people can offer. i'm talking about the relationship between intelligence and happiness. i think, provided you're reasonably competent - and therefore probably in the 95-110iq range - you're generally happier than people > 110iq. i don't think the trend continues incrementally, though, i.e., i doubt a 130iq person is more or less happy than an 120iq person. once you're into the "i'm smart enough to recognise my stupidity and the abundance of stupidity around me" category, i think the impact on happiness doesn't change much.
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