Can anyone tell me how media work as social institution?

As we know social institutions are the organization that provides a support system for individuals as they struggle to become members of a larger social network. The social institutions such as church, government, school and family play a good role for individuals to providing knowledge and communicative tools, social manner needed to integrate into society.
For social connectivity mass media play a good result oriented role through :

Televised programming
Movies and radio
Internet
Mass media is now becoming the dominant social institution, catering for the needs of society and educating its citizens.

As we know there are seven social institution:
Family
Community,
Religion,
Academia
Business
Media
Government.

As you got media is also a social institution and play a big role to provide any type of information in reach of general people and also it highlight important current events, and to essentially stand as a witness, an observer of cultural, political, community, and educational events.