If you say 'I'm going to cut this song because I know the teenagers are going to love it ' well then you're going to alienate everybody else. When I cut my record I'm just going to cut the things that I like and whoever likes it likes it. That's too much work to try to figure out the demographic. That's too much like a business.
I'm a latecomer to the environmental issue which for years seemed to me like an excuse for more government regulation. But I can see that in rich societies voters are paying less attention to economic issues and more to issues of the spirit including the environment.