When I see a wrecked car out in a field I don't think save this historic treasure for others. And pro's that tell the world to leave every thing for them because they are the pro's, well that seems like a con to me. Some times garbage is just that. But leave it long enough and it will be treasure to some one. So what determines the difference? Who gets to decide for everyone? Don't we have enough people telling every one what to do? We as a people love to use the term "Government" to indicate a higher authority. I claim that the government is nothing more than people, and they are no more intelligent than the rest of us. In fact from reading the news it is quit apparent that they are below average as a general rule. So please don't say "The Government Knows Best". If you say _______?_____ (insert a persons name), of such and such a branch of the government, because they have ____ experience and knowledge; then I would listen to your rationality.
Remember ancient cave art is nothing more than what kids do to walls that the government calls illegal. When the vandal is dead his vandalism becomes "historically important", while living it is criminal...
And what about the environment that is damaged by the wreck? Couldn't we "take everything that is not a natural part of the environment" and leave the environment pure?
As a back pack camping enthusiast I pack it in, I pack it out, and then some. That is I clean up after others that left what they packed in. I also abide by "No Trace" camping. When I leave you won't be able to tell I was there. I usually camp where others have left traces and repair the damage before leaving. This is analogous to "Take only Pictures, Leave only Bubbles". Good ideas, but can't we leave it better than we find it? And here we are again, who decides what "Better" is?
I don't have the answer, and I'm just rambling here because there is always more than one way to look at things. I'm a photographer and POV is the second most import thing to have right in a fine image.