To tug on the loose thread some more, IQ is basically an ELO score for the game of making enough money to live. For other language games, the equivalent is generally called privilege (for positive valence) or stigma (for negative valence). So having money is a privilege, and being poor is stigmatized.
Given all of that, some research questions:
* Why do people (mistakenly) think that black people have lower intelligence? (Hint: it's because they have less money/privilege than white people!)
* Why do people (mistakenly) think that Jews and Asian-Americans have higher intelligence? (Hint: it's because they have more money/privilege than (poor) white people!)
Another research question:
* Given that the book The Bell Curve is pretty solid social science, why is it so deeply unreasonable to all reasonable people? Like how do we reconcile the idea that it's probably mostly correct with the fact that Charles Murray needs to shut the fuck up and never talk again? (Hint: it's because of the answers to the previous two questions!)