Well, I don't feel that I've played so many bad guys, and I'm rot really drawn to villains per se. I think a lot of people relate to some of my characters' inner struggles.
I've already spent a lot of my life doing what makes me go. There's a life out there while I'm still young, able to move, able to just sit at peace in the water - I should be spending much more time doing that, rather than continuing to go through this artistic struggle.
Most of us still believe in the intrinsic value of nature, but I think the first century of the environmental/conservation movement demonstrated pretty clearly that this value cannot compel a civilization-wide shift toward sustainable behavior and enterprise when stacked up against the urgent economic and social needs of 7 billion people, most of whom are struggling to get out of poverty.