We know that dogs don't behave like wolfs. And that what we thought about wolves and how we related it to domestic dogs has now been discredited. It has been said that dogs are no more descended from wolves that humans are descended from chimpanzees, but that in both cases there is a common ancestor.
This does matter in lots of ways. At the moment there is a big move towards raw feeding, which would suggest that the dog is a carniverous predator. Other sources suggest that the dog is a scavenger.
All these ideas can't be right. Or are people becoming dogmatic in their beliefs about the origins of dogs, how to live with them and how to feed them??