Then I would say let us stop looking at such people. Let us each start with our own selves and expand outwardly - from us to our children, parents, siblings, family, friends, wider social circle. Otherwise, we are just looking for ways to shirk that very critical responsibility and pass the buck / responsibility on to others. After all, we to partake of this nature's beauty and everything in it. The real problem lies in the highly individualistic attitudes we have developed in this modern world, where as long as everything is fine with me and my immediate family (sometimes we don't even care about family) who cares about society, the environment... It is for somebody else to worry about. We have to all develop an inclusive attitude. Think about what I do - how will that effect others, not just my own kids and family. It is not an impossible task if at least some of us start.
A small e.g. is if people stopped using plastic bags and cutlery as much as possible, its demand will reduce. Demand controls supply and that controls the amounts to be produced or manufactured.