Self-righteousness results from the misguided belief that what (you think) you know is correct and what others believe isn’t. When you judge others as wanting or even wrong, you deplete yourself. You diminish your own self-esteem because your subconscious mind doesn’t distinguish between how you view others and the way you look at yourself. If you want to experience a magical improvement in your life, drop any sense of superiority you may hold. You’ll like yourself better.
And so will others.