I think the author would make the argument that all of the dominants he listed have as a feature the threat of physical coercion. Granted, it doesn't include the bully down the street who wants your lunch money, but you could make the argument that the bully is on some level, a monarch. He rules his sidewalk with an iron fist, and only a bigger force will depose him.

I won't say the list is perfect, but I do think it goes beyond simply listing modern authorities.