Leave it to the Wall Street Journal to do a study on whether ethics pay. It seems they do, but you don't want to go too far with it. No reason to go overboard after all. The conclusion is this. "The lessons are clear. Companies should segment their market and make a particular effort to reach out to buyers with high ethical standards, because these are the consumers who can deliver the biggest potential profits on ethically produced goods.
Here are some statistics.
What consumers were willing to pay for a pound of coffee based on what they were told about the company's production standards.
Ethical Standards - $9.71
Unethical Standards - $5.90
Control (no information) - $8.31
How much consumers were willing to pay for all-cotton T-shirts based on what they were told about the proportion of ethical production.
100% organic cotton - $21.21
50% organic cotton - $20.44
25% organic cotton - $20.72
Unethical behavior - $17.33