Of course they don't, but if you choose to use a work of fiction as an illustration, it comes as a coherent package (assuming the author did a good job at world

Of course they don't, but if you choose to use a work of fiction as an illustration, it comes as a coherent package (assuming the author did a good job at worldbuilding) - you can't just take the bits you like and ignore the bits you don't and still have something coherent.