Your point that perhaps we should not expect this society to function like ours may be valid. However, you seem to imply that ALL "primitive" societies were "chauvinistic" in the sense of having rigid gender roles, usually to women's disadvantage. This is simply not true. "Tropical" i.e. Pacific Island societies in particular were notably egalitarian, with many great and powerful queens, noblewomen, etc. James Michener's "Hawaii" is a great book.