Whatever water you use in 2008 will still be available for use in 2020. Dams are already built and are collecting water whether you use it or not, so unless the water levels in your local dam are getting low there's no point in conserving it.
http://en.wikipedia.org/wiki/Ogallala_Aquifer
For the people in that area, the aquifer is their "local dam" and it is getting low.
Only communities nears rivers use renewable water.
This is why I don't participate in environmental rallies or clubs or whatever other crap our school tries to get us to participate in. Because for change to occur, it has to occur forcefully, not willingly. Either there have to be climate change/environmental protection laws, or there have to be economic incentives.
Other things being equal, following economic incentives makes you richer than if you didn't, which is pretty clearly a better life (everything else being equal). It means you can buy a better education for your kids, or for kids in africa, or a million other good things.
What precisely is a 'moral means?' I can see the term 'moral means' in contrast to 'immoral means,' but not in contrast with 'capitalistic means.' Are you implying that capitalism is immoral? Or, do really mean 'emotive means?'