I think I have more friends now because of the Nobel Peace Prize. These friends may not be very reliable. People with fame, power or wealth usually have many friends. If the person loses his power or wealth, these friends may disappear. I consider such friends insincere.
True friends share genuine closeness and remain friends irrespective of fluctuating fortunes.
Such concern for others is a great virtue but it is also selfish in a way since it's ultimately for one's own benefit and interest. Very often I tell my friends that if we have to be selfish, we should be wisely selfish. If we are sincere we will have reliable friends and benefit greatly. If you neglect others, forget about their welfare and think only about yourself, eventually you'll be the loser. Thus, the basic structure of human society requires a sense of responsibility based on altruism and compassion.