We do not know, in most cases, how far social failure and success are due to heredity, and how far to environment. But environment is the easier of the two to improve.
If one could conclude as to the nature of the Creator from a study of his creation it would appear that God has a special fondness for stars and beetles.
I have never yet met a healthy person who worried very much about his health, or a really good person who worried much about his own soul.