The neo-darwinian appeal is, unfortunately, not supported by evidence. The myth of the Alpha wolf is just that, a myth [0]. There is some evidence in pre-colombian contact societies that the Emperor and his cadre were responsible for many of society's children [I can't find the link right now, my bad]. However, if anything, this reinforces the societal aspect over the more 'base'/darwinian aspect.
Also, this doesn't explain Joe's appeal toward men. If the meanest monkey has the most offspring, then his appeal should be with women.
[0] https://www.artofmanliness.com/articles/how-to-really-be-alp...