To raise the likelihood that your genes will survive. Same reason for women finding a man with resources. It's probably somewhere in Game Theory. The oil sheik with harem arrangement may be an example of this.
For me this is settled but if you can find counterexamples I'd like to read them.
You could also try http://www.amazon.com/unSpun-Finding-Facts-World-Disinformation/dp/1400065666
To raise the likelihood that your genes will survive.
That's not my "job" and isn't really an imperative either -- lots of people remain childless by choice. I think it is an empirically observable fact that males do NOT attempt to impregnate as many females as possible and the women do NOT stick to the richest male they can attach themselves to. It's just not happening.
Maybe you think this is the way it should be or was meant to be, but your opinion is normative, not descriptive.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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