If a rancher gets above sale price for a steer, even a pitiful 5%, then that rancher is going to find ways for this steers to get killed by wolves (for example by having them graze on public lands next to a den of wolves).
What incentive would a rancher ever have for preventing the wolves from killing the steers? If the wolves don't kill a steer, well then there's the hassle of taking it to market and getting market price. If the wolves kill the steer, then they get market price plus 5%, and don't have to even find a buyer.
No they won't, because of the dangers involved with bringing a predator into the fields. You risks your family, pets, and business. Its just not worth 5%. Time and keeping the wolf off the ranchers land. You don't want them hanging around. Many cattle are already contracted, plus you are going to need to spend time dealing with it.
There is a serious danger in feeding wild animals and ranchers are smart enough to know it.
What incentive would a rancher ever have for preventing the wolves from killing the steers? If the wolves don't kill a steer, well then there's the hassle of taking it to market and getting market price. If the wolves kill the steer, then they get market price plus 5%, and don't have to even find a buyer.