Yes yes, and good teeth is associated with better future income. I am a man, and I am 6'4", and that helped, I am sure...but you also overstate the case in a very exaggerated way. There are many factors at play, and no single one is deterministic. Else my glowering face and awkward social communication, and my impoverished upbringing, and undiagnosed ADHD, and the three children I helped raise while in college would have drug me down. I agree that there is an effect, but disagree that it is as strong as you say it is.