Selfishness leads to much of our unhappiness and our negative behavior toward others. A healthy self respect is needed for good emotional balance and wellness. We want to learn true compassion, and how to get along with others. Overcoming the faulty dynamic of selfishness benefits us mentally, emotionally, and physically.
The simple Tonlen breathing exercises with visualization can work wonders. Giving and Takings upon the breath.
Learn more about self tonglen here