The difference is that I am looking at it from the side I see as reality and what major companies do. I work for a brokerage that represents major brands and there is in fact product savings through efficiency in larger production runs. This doesn't mean I support this as the only model, it's just the reality for most common consumer products that the masses buy.
I can however fully agree that there are times price alone should not be the deciding factor and doing what you think is personally right is the way to go. I do the same myself in dealing with certain purchases. Though most of us can't always do what is socially or morally right due to limits of budget, even if we do it when we can it might influence the market. If you haven't already checked it out you might want to check out the site on Race Aficianado's signature lines.
http://www.thehungersite.com
Having said that I now more than ever wish I could enjoy veal for dinner. It's one of the things I draw the line on, even if it's a "dumb animal" that suffers. But even though I love the taste of it, I won't ever order it.