Why be good?

[Esquilax]

But why? If God does not exist, why be good?

Please circle which of these two human cultural sets you would wish to live in:

A: Modern society.

B: Mad Max world.

Being good nets you option A. Not being good nets you option B. That's just logically true: human society has been built, from the ground up, by our cooperation and the establishment of our social contract. Literally every single thing that you enjoy in your life stems from those two things, including actually your life too, in all probability, given that the medical science that extends human life is also a result of cooperation. It's so very strange to me, how many theists ask this question, as though they assume human society requires no upkeep or buy-in from actual humans.

Also, have you considered the consequences of what you just said about yourself, there? If you're seriously asserting that there's no reason to be good beyond the threat of hell and the promise of heaven, then you need to realize that you're only apt to talk about yourself, not everyone else: all you're really saying is that you can see no reason to be good beyond a carrot and stick. Essentially, that you would not be a good person if you didn't think you were being alternately cajoled and threatened to be one.

Do you really think that about yourself? Do you hold yourself in that low esteem?