A slightly different take on the trickster figure in mythology:

In my mind, they are also identified with the notion of writing, communication, messages; I am of course, thinking most especially of Hermes, Mercury, Thoth.

One could take this further, identifying novelty and invention with these figures, and, as I have suggested in Hermes, we only know the gods through the messages we receive from them, delivered by the messenger god; they could be an invention in the literary creation that is the message.

As for the trickster image, one so often reviled as evil, see Loki in particular, this may only be the result of the appearance of something new and different on the scene.

Imagination is not usually accepted into society. Its bearers are, with great regularity, shunned. Society eventually accepts the gifts of the inventive imagination, as evinced by the high position these figures are often accorded. But the reverence is not full-throated, and we have the stories to prove it.