I grew up on a farm (18 years - cradle to college) and I can honestly say naming our food never made it taste different. We had milk cows, stock cows, cattle, hogs, sheep, ducks, chickens and other various experiments. You've never tasted better hamburger than that made from an old milk cow.
It didn't sit well with my (future) wife when she came out for supper one night and asked "where's that lamb that always follows you around?" and my answer was "Oh, Charlemagne, he's on the grill.". She got over it.
I understand people's squeamishness but really, it's raised to be food, there's no other reason to feed livestock if it isn't going to be eaten by someone. Every animal has a personality but if farmers let that get to them we'd starve.
Free range livestock isn't sustainable unless we make serious changes to our diet. It would mean no 16 oz. sirloins or big juicy burgers. We'd all be healthier but I don't see it happening. Here in the mid-west we produce so much corn that it isn't worth what it costs to raise it and we can't eat it. We have so much that we invented an idiotic fuel production system to try and use it and then the government subsidized it. We used to raise crops besides corn and soybeans but we don't anymore due to the demand for meat products.
We can feed the world off the farm land in the USA, we just can't do it and raise so much meat at the same time. As a T-shirt I saw at the State Fair said "Put down the Pork Chop on a Stick and move to the salad bar".
Sorry for the rant.