His concern, as was Kant's is the voluntary nature of human action. While he realized that society is often beyond our control, he wished to know what choices people would make for a social contract if they were free of societal constraints. These are people of ordinary talents, tastes and convictions. Must agree on a social contract before the self-awareness returns. Each person participating has the right to the fullest liberty possible.
All inequalities are arbitrary unless they benefit everyone.
This consent can only be given if the party is fully informed. Any group that receives special benefits or privileges must be open to everyone and must act for the good of all. Entrance to a special group must be solely on the basis of merit, which means that person is the best person to benefit all. The fundamental concept of Justice Theory is that of fairness. The idea behind fairness is that no one is taken advantage of, and that one would agree to the rules as equitable no matter which position in society the person occupies.