There is a myth that wolves have a strict hierarchical social structure that arose from some less rigorous opinions of naturalists. Current and rigorous science does not agree with that theory.
Amusingly, the animals that do exhibit that type of hierarchical dominance are Merino Sheep. Rams fight each other to establish dominance in exactly the way that the mythical alpha wolf was believed to.
Thus, it is factually incorrect to describe anyone metaphorically as an “alpha wolf” but it would be correct to describe such people metaphorically as “alpha sheep” and people that buy into that whole thing as “sheeple.”