I have a bulk of the necessary parts of the world of my fantasy novel planned out -- primarily the supernatural aspects. While the members of one city does act a certain way because of a part of the supernatural elements, it doesn't feel like all of the things I have written out for the way the city works is totally relevant to the plot at hand. In fact, I have an organization that the MC is apart of, that ends up finding their way into the plot, but is really not relevant, or responsible for much of the primary happenings. In fact, they seem to more exist purely for the sake of character arcs, and this doesn't seem acceptable to me. How exactly would I go about making the world and other elements more relevant to the overarching plot at hand?