I don't know what you're trying to say

Of course people are influenced by their background, their caregivers, parents or even siblings.

But you cannot predict a person's growth path and where he/ she would be by their orginal families.

The proof is Abraham Lincoln had siblings but we didn't know much about them.

Weren't they raised by the same parents or step parents? Weren't they equally poor as children?

People's life trajectory is quite random sometimes. The people they met outside of their families are also

important influencers. And even siblings don't have exact life paths. So they got different outcomes.

Gender is another thing that defines a person's life path. Men and women are not being treated equally in

social, economical and culture aspects. So you really cannot predict how far a person can go in her career and 

achivement if it's a girl. There are three female supreme court judges. Why not anybody else then? 

Where are most of the girls ended up with? Probably at a job that is traditionally set for women, a teacher,

a nurse, or a caregiver, a mom. They are not being told to go that way explicitly. But that's how life works.

Men were hunters, women were gatherers, pickers, cooks at home. They still are even today.