Even the world's most inhospitable, inaccessible places aren't untouched by human activity. Just about everywhere we go, we leave some evidence behind that we were there. And of course in those hard-to-reach spots, it's that much more challenging to clean up after ourselves, or for others to clean up later on.
And so, it's a bit heroic when someone goes to great lengths to try to get those areas back to some semblance of the pristine state they ought to be in.