It's essentially a personal choice and no one else's bizwax. 

Fact is that there is no right or wrong, either way.

There are some who have stayed in the US and feel superior.  Well, if that makes it easier for them to digest McDonald's Quarterpounder Cheeseburger, so be it.

And there are some who put on equally pompous air of self-sacrifice or moral superiority or even equally prepostorous stance, "the ripples I create will be stronger farther I go from my alma mater."  Yeah, whatever!  To those, and particulary the ones who harp that third note again and again to whoever would listen, I would just restate the obvious as the poster above did, "laato ko desh-ma gaado tanneri."  But still, it is his/her/their choice.

Those who know, know.