Being correlated isn't very valuable in itself. Even if you do believe that blacks on average have a lower IQ, scores on standardized test tell you a lot more about someone IQ. The question would be whether the name is a better predictor of job performance than grades to distinguish people in the population of people who apply or whether the information that comes from the names adds additional predictive value. But even if various proxies of social status would perform as predictors I still value high social mobility. Policies that increase it might not be in the interest of the particular employeer but of interest to society as a whole.