Well that's the thing, though, right? Living is all about choices based on your priorities. If cash output is the be-all and end-all for you, then fast food is fine, which is apparently where that book's authors sit on the spectrum. I know a couple of vegans who will wear plastic shoes made in China rather than anything with animal products. Me, I prefer not to wear plastic OR made in China (so it's probably just as well that I'm not vegan) for environmental and humanitarian reasons, respectively.

Oh, and The Green Glass Sea is very good.