You're thinking in-universe. (Obviously, in-universe, one's family's former elite status should not prevent one from achievement.)
Out-universe, I object to depicting a family from the modern ruling class as being part of a future utopian ruling class, as I think that contributes to the idea that such families ought to dominate. This is an evaluation of the narrative, not an in-universe evaluation of the character.
I would disagree, primarily because so many other people are not from said classes. However, this is a bit off topic and (as Christopher mentioned) not an issue with his writing intent.