I've written about this before. It seems to me that people are pointing at something real and important when they use the term "Beta Male" witness the pathetic display of Moby in recent days.
But the expression "beta male" is awful. There can only be one alpha in any group. To engage in that sort of language is to trap yourself in a zero sum game that you are almost certain to lose. It also precludes cooperation.
I much prefer Robert Glover's condemnation of making moral decisions by committee. You want to be a man who decides what is right and does it and not a man who farms out his moral decisions to the community around him. Glover called the sort of man who does that a "nice guy". That term is less offensive but, perhaps precisely because it is that, it is also less useful.