The institution offering the education must be able to test if their education is effective, education doesn't work well without tight feedback loops. Neither teachers nor students are drones whose behavior can be measured by some perfect third party process or human(s).

That said what passes for education at most places works best when you do start treating teachers and students as drones. The logical conclusion of that is something like Khan Academy with spaced repetition, and the savings in time and money worldwide would be tremendous if that system were to be embraced by the US department of education. What passes for education is definitely worthwhile for some things, but it's not really in the traditional spirit of education.