Sorry, but I think that's a false conclusion. Kids often grow up to follow in the footsteps of their parents.
Examples; Joseph was a carpenter and so was Jesus. Actor's children often grow up and go into show business, lawyer's children often grow up and become lawyers. That's not DNA, that's culture. Nurturing.
IMO, the reason the Trump's grew up to be more immoral than the Carters is because that's the family culture, not DNA. If we were talking about a family of marathon runners or baseball stars, I'd more readily agree there is a genetic component. Same for theoretical physicists or other high IQ careers. However, on average, I put more weight on nurturing.
Consider Euro-American middle class parents who adopt babies from Asia or African. That negates the genetic component. Do you think the kids will grow up more successful in that environment than if left in a lower income or Third World shithole environment? I do because it's a more nurturing environment.