I'm very sceptical of arguments that say "we evolved that way because of XYZ". I mean, there's just no way to prove or disprove it. Not without, like, a lot of work, anyway. I'm certainly not equipped to do a literature review or write a textbook on it, so I just can't trust these arguments. And even then, when you consider that things that were in textbooks for decades like [wiki]Bateman's Principle[/wiki] are later shown to have serious methodological and inferential errors, rendering the original study and its findings fundamentally flawed, it's hard to get behind any kind of evolutionary hypothesis for human behaviour.
I just don't trust theories that are as general as the ones Warpus is advancing. To me, talking about "alpha male-ness" in that way is on par with saying "ladies in China really liked men with almond-shaped eyes, which is why so many of them have eyes that are more almond-shaped than in European men. Almond-shaped eyes were useful for hunting in China's environment, weather and landscape."