Once read that to keep control of the populace i.e. to stay in power, do two things:
1) Dumb down the next generations.
2) Keep the people working hard at low-end jobs, keeps them busy scraping for food and out of politics.
Find it interesting that we as foreigners can get jobs in the USA like seasonal work on farms, driving trucks earning quite a bit of money, when converted back to our local currencies from USD.
Example: I can visit the USA on a work Visa and drive trucks for between $1000 – $1500 per week depending on trips driven and employer. When converting that to SA Rands, I would be looking at between R 15 005.30 – R 22 507.95 per week … tax-free… damn, that is a lot of money per month with meals, flights, and accommodations paid for by the USA employer.