What about, it makes the Earth look and feel like crap? I have more things to care about in life than pure survival. If my environment is ugly (and sure, that's subjective, but something a whole lot of humans at least loosely agree on), the quality of my life is adversely affected. I like forests not only because of their effects on water tables but because they're beautiful, and I enjoy walking in them.
Deforestation and polution are still a bad thing, as it leads to desertification which reduces the arable land, and toxic chemicals in drinking water and food supplies.