Earlier quoted context omitted.
> the pre-colonial population maybe didn't have a culture of setting up long running businesses This assumption of an entire continent as having a single culture is something that I find cringy at best.
Are there any pre-colonial African nations you would like to name as a counter-example? One that had a tradition of setting up and documenting long running businesses?
E.g. after the third Anglo-Ashanti war, the conquering British noted how impressive the palace was, and called out the number of books in different languages, and then they promptly burned it... So vast amounts of information about the operation of the Ashanti just went up in smoke.
Similarly they burned the entire capital city of the Benin empire to the ground.
It was not just that these empires ended; they were in many cases close to being erased from history.