Terminator:
Yes, the digging of trenches, latrines, and wells would make a huge difference. But none of that requires that people be sent to university and at enormous expense. I think it is a waste, for all, to invest in university education if it cannot be done properly and if the graduates are simply going to end up doing work that does not require that sort of education. It does happen that some people end up in that situation, but that is never their goal, and it should not be society's. It certainly is a poor situation if, after all that time and expense, the universities produce "engineers" who are fit for only jua-kali work; and that is an entirely different issue from that of the value of jua-kali products.
Another aspect has to do with where the country wishes to go. I keep hearing that the plan is to be an industrialized country (by 2030?). In the 21st century, I don't see that happening with sub-standard training of engineers and technicians.