We do value education. Look at how much people are willing to pay for private school when they can afford it.

We just don't value education of other people's children. That wouldn't be a good competitive advantage for our own spawn.

Or so many people think. I personally love the idea of education for everyone as it means fewer people resorting to crime with no other option. But an educated populace is a threat to many powerful institutions, so they convince their sheep to vote against it.