That is not what they are saying. They are saying that for the economy of Kenyan as a whole having a bunch of smart people writing essays for westerners does n

That is not what they are saying. They are saying that for the economy of Kenyan as a whole having a bunch of smart people writing essays for westerners does nothing to improve the local economy. If they are instead working to provide services or build infrastructure locally that will improve the economy for everybody there.