Under a socialist system, poorly achieving students would get 10 points added to their grade. (It would be taken from the hard-working achievers.) No achiever would be allowed to say that the slackers don’t deserve their extra points. The slackers would be allowed to accuse the achievers of anything that they can dream up, and the achievers would be automatically guilty.
The slackers would not know anything, so they would need special privileges when they look for a job, and the achievers would be passed over.
Wait - that’s how it works now!
Marx came up with his theory while he was high on Cocaine and Opium after staring at his Ant Farm for hours...Eureka!