How does anonymous authorities rules?

We neglect the role of the anonymous authorities like public opinion and "common sense," which are so powerful because of our profound readiness to conform to the expectations everybody has about ourselves and out equally profound fear of being different.

The rulership of conscience can be even harsher than that of external authorities, since the individual feels its orders to be his own; how can he rebel against himself?

Instead of overt authority, "anonymous" authority reigns. It is disguised as common sense, science, psychic health, normality, public opinion. It does not demand anything except the self-evident. … Anonymous Authority is more effective than overt authority, since one never suspects that there is any order which one is expected to follow. In external authority it is clear that where is an order and who gives it; one can fight against the authority, and in this fight personal independence and moral courage can develop. But whereas in internalized authority the command, though an internal one, remains visible, in anonymous authority both command and commander have become invisible. It is like being fired at by an invisible enemy. There is nobody and nothing to fight back against.

Most people are convinced that as long as they are not overtly forced to do something by an outside power, their decisions are theirs, and that if they want something, it is they who want it. But this is one of the great illusions we have about ourselves. A great number of our decisions are not really our own but are suggested to us from the outside; we have succeeded in persuading ourselves that it is we who have made the decision, whereas we have actually conformed with expectations of others, driven by the fear of isolation and by more direct threats to our life, freedom, and comfort.

Yet the pressure of the sense of duty is great enough to give him the feeling that "he" wants what he is supposed to want.

In the course of modern history the authority of the Church has been replaced by that of the State, that of the State by that of conscience, and in our era, the latter has been replaced by the anonymous authority of common sense and public opinion as instruments of conformity.

Or, instead of obeying overt authorities, he has build up an inner authority - conscience and duty - which operates more effectively in controlling him than any external authority could ever do. In other words, the social character internalizes external necessities and thus harnesses human energy for the task of a given economic and social system.

--Erich Fromm