via The poor poorer and the rich richer
Evolution is an unconscious, incognisant, uncaring, unplanned process. If it were true, that genes used morals as a cloak for sex then ironically it would position the very advocates and organisations which urge decent moral behaviour upon us as the very ones promoting strategies leading to sexual behaviour – that such sexual intercourse should remain within the parameters of couplings sanctioned by the church makes little difference to the incongruity of such a situation for the Rusean message:
‘Be nice to others and you will get more nookie,’ has the same message whichever way you look at it.