Or, to widen the perspective, why doesn't an American making $30,000 feel rich when he is above the 90% percentile for the world? (And he feels wretchedly poor

Or, to widen the perspective, why doesn't an American making $30,000 feel rich when he is above the 90% percentile for the world? (And he feels wretchedly poor because he has to have a roommate and use public transportation.)