Fake. Or at the very least the story is not real.
This story started about 4 years ago and makes the rounds during/after every deer season. I’ve had these pics come to me several times, each time there’s a different story attached. I remember Alaska, Canada, Wisconsin, and Michigan for sure. I think there might have been a Montana version as well.
BTW, you can never tell the “alpha male” simply by size. Alpha refers to behavior and social position, not size. Most predator biologists scoff at the term because there isn’t necessarily an alpha in each pack and even if there is, it’s often only an alpha female whereas the social structure of the males is much less clear.
Some years ago I spoke to a woman who had done extensive wolf research and specialized in wolf biology. She said that she wished that the vast majority of what people think they “know” about wolves was actually both factual and true.
People tend to anthropomorphize a lot, especially when it comes to wolves. As we saw in the recent hunting debate when wolf cuddlers brought up the theory that hunting wolves would potentially kill off “elders” and therefore produce roge gangs of juvenile delinquent wolves because there would be no firm hand (paw) to guide them. 
Grouse
