Lots of cultures including extremely violent ones amounted to nothing. It hardly seems to be a factor, except to say that we can tick over quite nicely without privation. The Minoans in particular were very sophisticated for their time, However, I've often wondered if the hunter culture depicted in Predator, a highly advanced society that still conformed to apparently barbaric adulthood rituals was a nod in the direction of cultures deciding to embody the "no pain no gain" mantra. Introducing an artifical scarcity if you will.
Something to contemplate.