The people who berate the NRI's are retards who eye them with utmost jealousy because the NRI's have done something which they failed to do for whatever reason. How many people will look at a beggar and feel jealous? Its only when a person moves about in a swanky BMW does one feel even a hint of jealousy.
Looking at the NRI-bashers, its evident that they are all seething at the success that the fellow Indians achieve abroad. If you are all indeed happy, then why would you even look at another person to see what he's doing? Its only when there's hollowness and emptiness inside you that you start looking elsewhere. That seems to be the case with all armchair Indians who simply cannot withstand a fellow Indian earn money.
Sunil Gavaskar was right when he once said on commentary - 'Its a inborn characteristic of Indians to pull another Indian down. They simply cannot stand to see a fellow Indian succeed'. A most apt statement.