It shouldn't.
China, India and Philippines all share one common attribute: they have, relative to opportunities, a surplus of well educated, sophisticated people for whom good, productive, satisfying jobs are in short supply at home. They actually and actively encourage emigration and they make life easy for the would be emigrant.
With regard to opportunity. I just learned that a young lady who used to work for me, in my civvy 'second career,' returned to China after finishing both her BComm and MBA here in Ottawa. She thought that her skills, knowledge and contacts would stand here in good stead in China ... and so they did, jobs were not hard to find, at all, but the sorts of good, productive jobs with bright future prospects that she wanted were scarce. She returned to Canada, almost certainly to stay, to take up an entry level management position, with good prospects for her future, with a big Canadian bank.
Every theoretical physicist, accountant or engineer that we take from China or India is just one from a battalion of qualified people who are "surplus to requirements opportunity," we act, in a way as a social safety valve for the Chinese and indian governments. But when we take a physicist or accountant from, say Bolivia or Ghana we are taking one from a section, at best, not from a whole battalion. Our immigration policies often rob poor countries of their "best and brightest."
