Ranchers are rarely compensated for losses. When cattle graze thousands of acres they often find the carcass long after the death, when other predators have also feasted on it, so it is impossible to trace it to the wolf kill. The ranchers I know have not been reimbursed for on tenth of their losses.
Good point. With wolf packs near-by: the cows reproduce less / fewer calves, and their weight gain is reduced, ranchers have to send time & money watching for wolf pack attacks, and ..