FWIW I probably could afford to send my kid to a better private school or alternate-schooling group, withdrawing from the community and not-so-great public school system, but I don't because then I'm just another contributor to the inequality problem. We Live In A Society.
It is interesting to think of parents that see their own children as props, like pawns in some larger game rather than as individuals. I think there are subtle ways that this can happen.
I think a lot of people grew up in overly conservative homes. A common story you hear nowadays is a kid who grew up forced to tow the line in some religion and only once they reached maturity did they even realize there was another world out there. They may even promise themselves that they won't allow the same thing to happen to their own kids.
I don't know anything about you or your family or kids, but your attitude made me wonder if there is a backlash coming. If kids raised in forced diverse circumstances may rebel against their parents since they are being coerced into their parents view of "ideal world", much like the parents of stereotypical tiger asian parents or nutty sports dads.
No matter what way you cut it the will of the parent is subjected on the child. In my opinion that’s how it should be.
The decisive factor is what the focus of the parents will is. Is it personal glory? Is it trying to “make the world a better place”?. I would argue that choosing what is best for the child from the perspective of the parent is the best.
Giving them a robust worldview, a good set of morals and the capabilities to effect change when their older are the right way forward.
Our children are not missionaries that go into the world to make it a better place. Our children are to be nurtured so that when they grow up they can make a positive change in the world.