If you intend to honestly leverage expertise and experience And: If you believe that anger and defensiveness harm rational thinking. And: That being rude is

If you intend to honestly leverage expertise and experience And: If you believe that anger and defensiveness harm rational thinking. And: That being rude is liable to make people angry and defensive. Then - regardless of what world you'd rather live in - being condescending and arrogant seems liable to be ill aligned with your aims.