Maybe what we have here is a case of proper nouns, i.e. Gnostic as opposed to gnostic. Similarly, God refers to our old psycho friend, whereas god is a more general entity awaiting definition.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'