Building trust in the workplace is essential for the success of the company. Being able to build strong relationships that you can rely on is at the core of every professional relationship. Trust is the currency and is absolutely necessary in order to establish not only your own reputation but that of your department and grow a strong network of people who will help you throughout your career.
No one person is responsible for the success of a company; it's a team effort. In order to achieve results in any organisation, People rely on each other in the workplace; there is a chain of events/actions that passes from individuals/departments that need to happen. But that reliance can't exist without trust. Trust reflects your character, and colleagues will work harder for people they trust. That, in turn, helps produce above-and-beyond results.