Advanced levels of mastery and technics allow men to compete for improved status within the group by bringing more to the camp, hunt or fight than their bodies would otherwise allow. Mastery can be supplementary—a man who can build, hunt and fight, but who can also do something else well, be it telling jokes or setting traps or making blades, is worth more to the group and is likely to have a higher status within the group than a man who can merely build, hunt and fight well.
Like in companies the one who is the skilfullst and can bring the most value will be compensated the most