I'm a little new here to chime in on a subject that is likely to turn touchy, but my 2 cents.
Two of my uncles were police dog handlers and I farm, so not only work my dogs, but also raise livestock for meat and horses for sport, as has been mentioned.
My uncles can't smell cocaine. They can't run over 30 miles an hour and it takes them a long time to search a building.
Dogs are better at all those things.
I can't smell a raccoon from 40 feet away. Cows, goats and sheep can all run way faster than me. Pigs, especially ones I raise, are not instinctively afraid of me.
Dogs are better at all these things.
Sometimes, I ask my dog to do dangerous things. But I think that some of us, because of our work, remember that life is dangerous.
Domestication is a pretty sweet deal. Some dogs are asked to do dangerous things, but wolves have to battle for every meal they eat, that's a lot more dangerous. And it's not like they are being asked to do something dangerous so someone can get their sick, twisted jollies off it, like bull-baiting. They are doing a really important job, better than a human can, and saving lives.