Superiority complex

You may not realize it, but how you see yourself can affect the way you treat other people. For instance, when someone is happy with themselves and where they are in life, it's easier to be genuinely happy for others and their success. But if they're someone who's not where they'd like to be and they need to devalue other people in order to feel better about themselves, that's one of many signs that they may have a superiority complex.