Can Darwinism account for morality?

[Aaran]

but the argument is often made that the yardstick with which modern societies quantify 'goodness' is inherited from the religious worldview.

The religious make many absurd arguments.  So what?

I wasn't iterating that under the impression that it was a perfectly reasonable counterbalance to the argument from natural selection. 

Of course its silly. But hearing it still turned my thoughts to the alternatives.