How does setting influence plot in "The Interlopers"?

In "The Interlopers", setting is critical to the plot.  Had the story taken place in a more urban, modernized setting, it would be much more difficult for the reader to believe that von Gradwitz and Znaeym could have found themselves in such a dire situation.  Because the two men are alone in the wilderness, they are able and willing to make peace with one another; had there been other people around or the story had taken place in a more comfortable environment, they would have maintained their hatred and anger.  Of course, the element of suspense and horror added by the approach of the wolves would have been negated in another setting.