As Antonio Gramsci would put from his prison cell while wondering why Italy became Fascist without people putting up a fight.
History teaches, but it has no pupils
We fell to the same thing, we let the wealthy define our culture. Our culture is now that of being cruel and taking. And people wish to be popular and wealthy more than moral or right. So we shift towards their world and act like them, till we have the cruelty in our own hearts.
You should ask people in a professional setting that work with schools this instead of demanding the answers from the black box of the internet.