Well it also depends on perceptions of relationships and monogamy. I don't know of their cultural ideal attitudes towards wives and agency (say she decides who she sleeps with period vs property to be shared spectrum) or actual for that matter but if it is a reciprocal norm it is likely a wash quantitatively. Not to mention survival concerns about having children to care for them in old age.

It reminds me of one joke about ancient Norsemen not caring about blatant signs of infidelity like the children having different skin and hair color so long as their sons were strong.