Yes, sorta...

There are groups that want utter control of all the sheep. These narcissists will stop at nothing to gain more and more control. They infest the tops of every pyramidal structure. The love the top down structure, and will do ANYTHING to be at the top of it.

Here is a book about one such person and the destruction of american free will by buying up all the education and changing it in such a way as not to teach people, but to school them. (So they all swam in the same direction from the same stimulus)
https://archive.org/details/TheLeipzigConnection

The selective breeding you think about is far more pervasive than you would ever think. It is also far less effectual than all those control freaks would want to believe.

There is a study, where they put mice in a big tube. Each spot along the tube had a few mice with food and water. And a large fan blew air through the entire structure. The mice further down the pipe went sterile. Affected by all the hormones in the air of the mice up wind of them. People operate the same way. So, all those buildings that have the windows sealed shut and the air piped in from one place... Same experiment.

But, there really isn't such a thing as a chance encounter. The children that you would bear were decided upon about the time of your parent's birth.

Your DNA is much larger and contains a lot more data than evolutionary scientists would ever be able to dream of. It contains pieces of your past lives as well as that of your blood relatives. Believe me, it really gets complicated.

And so, although these "culture designers" would love to be in charge and create ubermensch or docile sheep of people, they actually have very little control. Those genetic scientists of Gattaca were probably pulling their hair out wondering how children still had strange "problems" when the carefully selected their DNA. We really haven't even begun to study DNA. Most scientists don't even think of the magnetic properties of DNA.