After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of
i would think Might makes right. these were not highly educated people. I doubt they would understand the other alternatives you offered. But if you could put the ideas into simple words they might. But then would it be your understanding or the characters?