Studies show that people who are on the "good looking" side of the spectrum have distinct advantages over the rest of us. Taller men, men who are more "handsome" and have more "manly" features (e.g. chin, deep voice, etc.) consistently have advantages in negotiations for jobs, pay, status, etc. A casual search turns up a plethora of articles covering everything from getting interviews to pay to grades in school (here's one near the top, just as a starting point: http://www.businessinsider.com/beautiful-people-get-more-job...).

Being "good looking" is more about actually having physically "good looking" features than anything else you mentioned. What you mentioned are things the rest of us can do to try to compensate for a lack of physical attractiveness.