Researches study, but the figures they come up are far far away from reality. That is because everything exists on paper just not practically.
Can you possibly imagine surviving in that kind of jungle without being self-centered?
i dont' think 'self-centered' is meant as a derogatery term for the indians. Its just an observation, and the cause is poverty. I don't see a solution to this problem, because any solution that is viable, and realistically implementable, will have to be inefficient (due to corruption, and people with power taking advantage of the situation to the dismay of the poorer/powerless ones).