That would come with time. Education and human resource are linked together. Good educational intake by people means that human resource is well up. Also good human resource is educated. Africa, even rich in resources, hasn't utilized them or produced any technology which could utilize them because of the same fact. Lack of skilled human resource. There, they are all unskilled. This means that they could do hunting, fishing etc really well but couldn't do any technical work. IMO, some skilled people, say a 1000, should go to Africa like regions and educate people.
The local culture is, after all, the main cause of this all. If they could be more rational, they could have been well up.