How does one determine how large the correction should be? Since the system is all opaque and political, what prevents one from setting a correction factor of

How does one determine how large the correction should be? Since the system is all opaque and political, what prevents one from setting a correction factor of 10x, making sure no child of --bourgeois-- middle-class parents will ever set foot in an university? Such a policy was implemented in Eastern Europe under occupation by Stalin's armies in the aftermath of WWII. The economic and social results became quite apparent a few decades later, when the whole system collapsed.