My own findings tell me that arrogance points more to someone feeling inadequate. Arrogance is an outward sign to others saying, 'notice me.' If someone is happy with his or her own life, confident and satisfied, in essence 'at peace,' then that type of person has no reason to be arrogant. Arrogance is often perceived as something that naturally happens when someone becomes successful, etc. But, the opposite (in my opine) is true. Usually people who are arrogant, feel that they are inadequate, so no matter how intelligent, successful, attractive, wealthy they may be, they don't feel content with their lives. It's hard for me to completely explain. lol