Very successful Blacks for the most part came from at the minimum solidly middle class households. Many came from upper middle, even upper class households. They also had parents who were highly educated. They furthermore lived in integrated suburbs or other affluent neighborhoods where there were educational advantages not found in the inner cities where the majority of Blacks live.
They grew up in environments where education & achievement were encouraged. Their parents stressed the importance of education beyond the rudimentary level & believed in careers instead of jobs. Their parents were extremely proactive in their children's lives, believing that it is the parents' as well as teachers' job to educate their children. They also had two parent homes & believed in family planning-small families. Their parents strategized & planned intelligently. They didn't have children until they were educationally, emotionally, financially, & psychologically ready to do so.
Very successful Blacks had parents who set an excellent example as to the merits of education & achievement. Their parents just didn't talk about the merits of education & achievement- they LIVED that life. Very successful Blacks also associated w/others of similar or better socioeconomic class where there was a commonality of values. Parents of very successful Blacks didn't permit the latter to associate w/those of a lower socioeconomic class where oftentimes negative values persist. Very successful Blacks had parents who put them into clubs where they could interact w/other children who have advanced educational & achievement values. Also such clubs would provide them w/networking opportunities in the future.
Very successful Blacks had parents who had the monies to afford the best quality of education for them. They didn't attend the run of the mill public school that Blacks from lower socioeconomic circles attended. They also attended the best universities which further put them on the road to success. They clearly have myriad advantages & an easier road to success than Blacks from lower socioeconomic circles who had less educated parents.