See, your argument would be valid if a large number of Americans attended top universities around the world OUTSIDE of America. Oxford, Beijing, Tokyo universities, etc. It costs around half a million dollars to attend ivy league schools like harvard, stanford, etc. For foreigners, it costs 5x more then that because of non-resident fees, non-citizen, extra taxes, etc. I'm not stating that Americans are stupid, just stating your argument using the system of post education to validate the level of intelligence of a country versus another just doesn't hold up.