It is like the apochryphal caged monkeys experiment. People learn that corruption is then only way to get ahead, and who wants to be a martyr? One person can't

It is like the apochryphal caged monkeys experiment. People learn that corruption is then only way to get ahead, and who wants to be a martyr? One person can't change the system, some sort of massive coordinated action would be needed-- but how? Hence, rebel groups and freedom fighters and whatnot, but those have their own problems.