There is no formal police force of social norms because no such organization is necessary. From mass society arises a self-enforcing slavery.
One might picture a chessboard that sprawls as far as the eye can see with a king on every square. Every king is controlled by a different player.
In a mass society, one must behave a certain way or be punished by one’s neighbors. One’s neighbors must enforce or be punished by their neighbors for not enforcing. Such a system of bondage self-perpetuates:
Each individual king is compelled in turn, everyone coercing everyone else. This is Collective Checkmate.