Socialist Professor. Capitalist Professor

There is this popular story of a Socialist Professor, who awards grades equally to all students.

"As the story goes, a professor known to have never failed any student in the past suddenly found himself failing an entire class. The class had proposed a grading system based on the socialist ideal where no one would be poor and no one would be rich. The professor thus adopted a system where all grades will be averaged, with everyone receiving the same grade. This way, everyone thought, no one would fail and no one would stand out and get an A. After the first test, the grades were averaged and everyone got a B. The students who studied hard were upset, while those who studied little were happy. For the second test, the lazy students studied even less, and the better students decided it wasn’t worth studying as hard as before. The average grade for the second test was D, and no one was happy. By the time of the final test, the average grade had dropped to F, and everyone flunked the course."

This is a story of a capitalist professor. He awards an A grade for the best performer in the exam. All other students receive the F grade. Competition is tough. Students use every dirty trick inside and outside the classroom.  It is hopeless for all except the few still in the race. Grade inequality is at its highest.  In terms of the Gini coefficient, it reaches the ultimate highest value of 1. Before long, the students rebel.