Hrm. I'm wondering now if there's a possible ethical case for actions which don't improve the common weal. Or how to resolve conflicts between short-term present vs. long-term future outcomes, or other conflicts -- say, you classic Trolley Problem.

I also wanted to note that your dismissal of Fundamental Rights is a good point. I'm finding far more agreement with the Pragmatists (Dewey, James, etc.) than various Natural / Fundamental Rightists. If only because any idiot can jump up and claim "This is My Fundamental Right" and ... all rational discussion stops.