IQ predicts more than just income. It has incremental value for predicting scientific publications, academic achievement, patents etc even within the top percen

IQ predicts more than just income. It has incremental value for predicting scientific publications, academic achievement, patents etc even within the top percentile. http://adamlgreen.com/smpy/ http://adamlgreen.com/smpy/ there is also no evidence of strong cultural bias of the sort you are speculating about.