@ tore:
But humans do exhibit a high degree of altruism despite large disparities in relatedness. Such that we have social structures like orphanages, and place priority on "women and children" for safety, and use "but the children!" to be persuasive in moral action arguments. And I believe we still see kinship as a function of relatedness in racial issues. So the relatedness-to-altruistic relationship is still there but it's spread over a wider domain in the clade. You might even argue that we share more kinship with mammals than with reptiles and consider a much larger set of clades.
I would also note (or possibly remind you) that just because there's a better way to evolve, doesn't mean the process of evolution will ever discover it. Evolution easily gets caught in local minima, before it ever reaches the global minima.
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