@Xeon, you can blame Del for the gross diversion.
@Pioneer1, are are different forms of intelligence. Determining one's "overall intelligence," is often limited to how well people perform on standardized tests, or advance in school which marginalizes people--especially smart Black people--who don't have college degrees.
Often obtaining a college degree is more a function of opportunity, resources, who your parents are, where you live, one's performance on a high stakes test that measures one form of intelligence (test taking). It is not a function of one's overall intelligence. But we all know this--otherwise there would be more Black men getting college degrees.
Some people are smart in terms of interpersonal skills, mathematical skills, language skills, physical skills, and so forth.