Exactly. Comparing ourselves to others is always disparagament of our uniqueness.
Deep down it has to do with a lack of Self-Love. "I love you as much as I love myself instead of "I love myself as much as I love you" should be our directive, realizing that we can give Love to others only to the extend we love ourselves and not vice versa. Exactly this happens with achievement, as placing ourselves second means we are not in alignment with our own unique path, craving the end-product instead...
Billionaires are simply aware that talk is cheap, and that most people jduge by words not by actions..