I believe that everyone deserves to be where they are at, whether they were born with advantages or not. The worst example I can think of are children being born in the streets and with no one to care for them. In this situation, I can assume the baby had no choice of how to be born. At the same time, I can feel that caring people will try to put them in foster families and the government will try to force them to grow up in an orphanage.
It's up to everyone and even under those extreme circumstances to learn to be happy. There's nothing wrong about being below average in any area. Whenever people can't be happy for themselves, then they are just being dumb in general. One can decide to keep on being dumb or improve himself.
The average man's life to me in today's conditions is being a millionaire with a nice home, family with a good wife and kids, physically fit, and content in a well-rounded fashion. There's absolutely nothing wrong about living below this standard as long as the man is truly happy. If not, then he's just being dumb!
I wholeheartedly believe the best way to find true happiness is being fully aligned to the Lord's ways found in the pages of the Bible. The Lord shall bring comfort and joy to anyone who finds rest upon His graceful feet and loving Hands!