Businesses exist to provide goods and services, by employing people to do work. This work needs to be structured so that the organisation can meet its purpose and goals in a way that the necessary work gets done without waste or harm to people or planet.
Structure also a significant impact on the organization culture and how people experience working within an organization.  Some structures are experienced as overly rigid and controlling while others may appear to be too chaotic and random to achieve a purpose. People often experience confusion with respect to authority and accountability in role relationships