The problem with using race as a proxy for status is that it is incomplete and obfuscating.
Similarly, using wealth or education as a proxy for motivation is obfuscating.
In the end, neither status nor motivation are the strongest proxy for scholastics.
Last I checked scholastics were the original thrust of your argument about area.
That is a valid thrust but building proxy upon proxy (ad nauseum) to make a point is dumb. By that same logic (or lack thereof), I should be afraid of being blown up by my Indian neighbor due to prevalence of Muslims (proxy 1) which are therefore terrorists (proxy 2) who want to kill Americans (proxy 3) and thus me.