The human society has expanded rapidly in modern times. It is mainly dominated by the large-scale secondary groups. Owing to this reason, the society demands a complex division of labor and specialization of function. Unlike the primary groups, the specialized interest groups have different interest to fulfill.

The secondary groups aim at the fulfillment of the specific interests of their members. The performance of a task calls for a lot of time, energy and skill, which an individual member in a secondary group does not have at this disposal. For this reason, the large-scale organizations are considered very essential.

The secondary group helps its members to improve their efficiency in their specific fields of activity and in consequence, they become experts in this way, the development or increase of their efficiency and talents take place in the secondary groups. These groups also help people in broadening their, outlook.