How do you stop feeling intimated by successful powerful people?

I have one family member who is so successful and acts as if he has authority or power on someone. Like they just view him as the person that has everything right. From high paying secure job to communication skills and perfect relationship. They have all the attributes that most people are insecure about from being fit, financially stable, intelligent, good looking. But the part I just don't like about him is how he treats people differently. He always likes to bring others down when someone is struggling financially. And he easily say something that he won't double think. It may hurt someone but he doesn't care. Like why do this kind of people carry so much ego and think highly of themselves. Like aren't you a human also who breathes eats and drinks like everybody else