All the brain drain is hog-wash. If the situation is really so, the rest are drained brains!!!!!!!
Let me tell my experience as a student in an engineering college. The students who are failing in 5 to 10 subjects got selected in US univerisities!!
So, drained brains are contributing to brain drain!!
Well, to be fair to my fellow students, bottom line matters in a wise career move(asset building) with available resources(affordable money available for US fees, etc.,).