As long as we are still leaving the planet in better shape for the next generation than we found it
We are? 
Considering the millions of hectares of forest lost each year, extinguishing species, overfishing, etc, I wouldn't say so.
No, see, you don't understand. As long as we use all of those worthless resources to build needed things like SUVs and strip malls, then we're making the world a better place.