Desire is NOT a material resource.  Otherwise, you could buy a book with desire, or build a school with desire.  Black people have plenty of love, plenty of desire.  It was, in fact, our people who fought and went underground to learn, when it was against the law for black people even to learn to read.  We were the only people in the history of America, about which that was true, by the way.  

And I seriously doubt that, unless you yourself are black, you have enough immersion into black culture and especially, black home life, to see the gazillion ways that academic success IS valued.  Tremendous pressure is put on kids to succeed, and succeed academically.  But without the resources at home, in the neighborhood, or at school, how is this going to happen?  All YOU see is the outcome, the inevitable depression, sense of futility, or inability to magically overcome the material hurdles.  And because that's what you see ...the tip of an iceberg ...that's what you think exists.