What if socioeconomic status is heavily correlated with ability? We know IQ is highly predictive of socioeconomic status. We know that IQ is almost entirely he

What if socioeconomic status is heavily correlated with ability? We know IQ is highly predictive of socioeconomic status. We know that IQ is almost entirely heritable barring things like nutrient deficiencies and disease. So why would it be surprising to see that kids of higher economic status people are themselves more able than kids of impoverished people?