The question might be, if you ran the experiment again, would you get the same bias, or a different one? (as in, go back to the gnab gib and .. do over)
I get angry when people use it to justify "all moral rules are silly we're just a simulation" -if its a good simulation, then social precepts have value, irrespective. Except for the ones I don't like of course, they're going in the v0.2 iteration..