> society benefits from when parents raise their kids to be “better off” than they were.

Society doesn't benefit from this. Low-status jobs still have to be filled, at least until technology eliminates them. Making sure that your kids aren't the ones that do them isn't a benefit to anyone but you and your kids.

> I believe that having and even encouraging parents to strive, scrimp, save, and sacrifice for their children is an overall positive force for society.

This is less a thing that doctors have to do than a thing that plumbers have to do.