Social order is defined as a set of rules and structures that establish a cohesive social system. The term also defines a society that is in a stable state.
The stability of the human social system is established through implied social contracts and socialization. For instance, most people are socialized to understand that taking something from someone without their consent is stealing, which is wrong as it is a precursor to conflict within the society.
Social contracts work on the same basis and are regarded as implied rules that ensure social order. It is under such contracts that institutions such as governments can be established to secure the collective good and maintain order in the society. All members of the society establish and are subjected to a common system to ensure their expectations and values are standardized. This, in turn, creates awareness with regards to expected rewards and punishment towards maintaining the social cohesion established through a collective agreement.