The problem is simple because those Universities only teach you academic theory, for example, calculus, integral equations. On the other hand, Lots of electric motors do not work in the industrial plants and young students can't even tell the difference between single phase and 3 phase motors, not to mention 300 tons of chillers in a high-rise building.
One of my former coworker is a 清華 graduate. He has no EQ at all and always rub people the wrong way. Soon enough his manager often him 2 options: get demoted and move to a fringe department or get fired. 清華 means nothing in American workplaces. It's the employee's competency