Thank you cofty. I messed up big time, shame on me for allowing the subtle difference in spelling to hide from me the big difference in meaning. And yes, I meant that an amoral individual thrives at the expense of other individuals, not necessarily the group, as you suggest.
The tricky part in our discussion is the word morality. If you restrict it to meaning cooperation, I may agree with you about being for the benefit of the survival of the group, but if you extend it to marriage, homosexuality, and a host of other concepts, then that has nothing to do with natural selection and may or may not have any effect on it. I rather remove the word morality altogether from our discussion and rather deal with cooperation.
I will look into the material you are suggesting