"Can organic produce and natural shampoo turn you into a heartless jerk?"

"Yes", according to science (from the University of Toronto no less! And hey, how can you dispute the science?) via Instapundit, Slate:

Virtuous shopping can actually lead to immoral behavior. In their study (described in a paper now in press at Psychological Science), subjects who made simulated eco-friendly purchases ended up less likely to exhibit altruism in a laboratory game and more likely to cheat and steal.