Comment by sublinear

I've never been to sub-saharan Africa, but I did grow up broke enough to be on the receiving end of people with good intentions.

I'm not saying you're necessarily wrong, but the realities of a situation guided by those who more deeply understand it can very quickly prune the possibilities that an engineer sees. Many engineers would just get frustrated and give up. Many leaders would become impatient with those engineers.

I think to get people's heads out of the clouds and produce real results requires a very special kind of engineer. That is most likely going to be someone local, not an outsider. One can definitely help on the education side of things for the locals, but I'm not convinced that's where the real problems are. It's more likely political and economic. Not even the best engineers in the world are going to solve that.