Some people say that self-esteem is a form of being self-centered.
There is one big difference between self-esteem and selfishness. It’s empathy.
Empathy is the connection between us and others because it makes us interested in and respectful toward others. When we have genuine self-esteem we have empathy.
Selfishness on the other hand is self-centered and not interested in others. Selfishness doesn’t know empathy.
This is the essential difference between self-esteem and selfishness: having or not having empathy.