I've read multiple studies that the biggest influence in a kids success in school is their parents involvement.
Don't make the assumption that throwing more money at teachers will improve our schools. Zuckerberg tried that with little success, as have many before him.
I'd rather a focus on ensuring every kid has a healthy meal at the table. A support group who's invested in tbe individual kids success. A family that encourages and supports during the best and worst of times.
Arguably the "advantage" well to-do middle class families get.