[twobits]

"You make more than your sister doing "less" work because knowledge and high level skills are a value multiplier. You may come up with a world changing idea that generates billions of dollars. No kindergarden teacher could achieve that. Pay matches accordingly."

And then the kids grow up, and you are fucked. Do you think the first ever important thing those kids learn, for society, is when they become 20+ and one day they start learning compsci-simulated-quantum-biomolecular-teleportation-of-artificial-intelligence-nanoparticle-drug-dynamofeedback 101? (Yes, if it's not obvious, I just pulled that out of my...)

She gets less, cause the system doesn't care about if the world in totally destroyed 30 years down the road. (Actually that would be great. Opportunity for "growth" and profit.) It only cares about billions yesterday.