Hm, so if no one sees it, it is not of value?
I dunno. I have yet to see a great blue whale, yet it enriches my life knowing they're about. I have yet to climb Everest, but it's good to know I can try if I have an inclination to do so.
I like the idea of there being true wilderness left where one can get a bit away from the artificality of every day life.
But if something only has value if it is utilised by man to you, well, that's your opnion. A sad one that does not bode well for the future, but feel free to have it.