The history of Italian literature cannot be understood without the vernacular poets. But their works were largely unknown until Lorenzo 'the Magnificent' sent a gift to the Prince of Naples.
South African parents want their children be taught in English despite the fact that research shows that academic progress is hindered if a child is taught in a language they aren't proficient in.
Africa's current situation has a parallel in European history - the Reformation and the changes it wrought in terms of language exceptionalism.
There is little value in translating academic texts into "high" or "deep" versions of African languages. Most students read and speak their mother tongues in a far more colloquial fashion.