I'm a liberal myself so I agree about the overall benefits in general, but I think in most times and places, the replacement wouldn't be rapid enough to save anyone. In the book referenced in that piece, Henrich brings up examples of European explorers who get lost. We're talking about well-organized units of well-trained, fit men who have been exposed to liberalism. In all cases, they either hook up with natives and are saved or starve to death (and usually resort to cannibalism on the way out the door). In one case in Australia, even after finding tools and getting instructions on food preparation, they missed a key step and died. Even the most primitive-seeming cultures have developed processes that no one could figure out on their own under the gun in one lifetime.