Often heard questions are: "Why do we live?", "How should we live?", and "What is the purpose of our lives?". Let's not look at this from the point of view of religion, but, as is more befitting for a book on ISs and their societies, from the point of view of an IS.
It seems to me that the above are not really the correct questions. We could just as well ask if we let go of a stone: "Should it fall downwards or upwards?" Or, "Why does it fall downwards?" And don't tell me it should fall downwards because of the law of gravity.
Today a society could live on abundant drugs and pollute their environment horribly. But if in the future a difficult moment arises, such a society will not be able to react correctly, it will cease to exist. There will be no descendants to raise the question about: "How should we live?"
So lets realize that we are IS's and as such have a main objective, that is built in through evolution, namely the survival of the species. We are members of a species called Homo Sapiens, (I doubt that we are "sapiens " except on rare occasions) but we are the animals with the best thinking processes. At least we believe so.
It is noteworthy that anything that helps us to obtain our objectives or the objectives of our society, we call "good". That which hinders us or our society in obtaining our objectives we call "bad". It seems that there is no absolute "good" or "bad"; one independent of the existence of humans and their society.
Note: IS = intelligent system.