You've just described brain-drain in its most common form. It's not a new phenomenon. It's at least as old as modern forms of transportation and probably way ol

You've just described brain-drain in its most common form. It's not a new phenomenon. It's at least as old as modern forms of transportation and probably way older than that. A vicious self-reinforcing cycle that drains underdeveloped countries of the best and brightest - the very people most suited to lead and improve the countries they leave. The US has also been historically the biggest benefactor.