Dar-Nimrod and Heine (2011) decried genetic essentialism without denying the importance of genetics in the genesis of human behavior, and although I agree on both counts, a deeper issue remains unaddressed: how should we adjust our cognitions about our own behavior in light of genetic influence, or is it perhaps not necessary to take genetics into account at all? I suggest that the genetics of behavior does have important implications for how we understand ourselves, the differences among us, and the ethical implications of our actions, but that the usual metric for these considerations, the heritability coefficient, is not the correct one. I propose an alternative. (Contains 1 table.)