Everyone makes a difference. Someone who does something for others makes a big difference. A person who has no self-interest to do things for others makes a bigger difference. But, one who does everything for everyone for the sake of humanity without vested interest makes a real big difference for sustainability.
AnujTo understand something properly, we need to know it a little more; but to know someone purely, we need to understand our inner feelings truly and for sure.
AnujNot necessarily reputation, rank, societal position or status,but the happiness and enjoyment that a person pretends or fakes to derive with his possessed money or wealth or both make largely others jealous and envious of him.
Anuj