If the true externalities of your consumption are not priced into the product then you're not really paying for it.
As a general rule this is the problem with our entire lifestyle. Very few people will deny that we do not life a sustainable life style, and yet almost none consider what this means.
The definition of unsustainable is that you are consuming beyond your ability to pay. If all the true future costs of our industrial life were factored into the products we consume, we could not afford any of them.
> If the true externalities of your consumption are not priced into the product then you're not really paying for it.
This is true, but other than showing up to the butcher with my money, what else can I do? Some _other thing_ needs to motivate these externalities into the price; not the consumer. The only thing I could conceive of doing is voting with my wallet, which I do when I buy grass-fed meat.
I only eat 100% grass-fed beef, and I believe the world would be better without corn fed abominations.