The end goal of ITIL is to increase the earnings or reducing the costs of organizations. It does this by providing a framework where IT organizations can implement a repeatable, measurable and effective processes. The main idea of ITIL is everything is viewed from the customer perspective.
With this perspective, processes are geared toward satisfying customer requirements. The business becomes the driver of IT services rather than IT driving the business. IT is now viewed as a service provider. It is not only viewed as an organization that provides support to an application or infrastructure component. IT is viewed as a critical service within an organization.