So, I was a part of a borderline poor family and somehow made it out into what is essentially an ivy but on the west coast (probably was a pity admission). Poor family's can have these values, however its simply the logistics and stressors. How do you take your kid(s) to a class outside of school hours to teach them how to memorize the answers to a test when you have multiple jobs, public transit sucks or non existent if you live in a place like florida (so your kid can't take themselves), and your kid is also probably ill equipped for that environment because your child's school is more of a day care and not a place to learn because we have given up on schools in the US. If you are a person of color, then its even worse because even getting into an OK school district can be extremely difficult due to Nimbyism which is a proxy for racism (and classism) basically.

Its not values. Poor people and especially poor people of color are setup to fail and its shear force of will that gets you out. I also don't want to discount the effort that middle class+ kids put in. They put a lot too and I don't want to say they aren't deserving. But the playing field isn't level.