Some of us don't care because there's literally nothing we can do about it.
It's that kind of apathetic, defeatist attitude that propagates the way they treat animals, the way they farm and the way they produce food. This is across the board in all kinds of products.
To think or believe you have no power is to have to no power. There is something very wrong about what we (as a general consensus) eat and endorse with our purchases.
Every time you purchase something, you're essentially voting for organic, non-organic, local or foreign foods, mass-slaughter or hand-rearing.
Next time you feel hungry, why not try and make a logical, rational decision about what you're going to put into your body?
After all, eating is primarily the consumption of nutritional supplements to stay alive, so why not get the best you can?