[general1465]

That makes no sense either. Evolution means that this change happened gradually over the time. However the moment you have a group which is always honest and believes you and group which is allowed to lie, then the lying group will take over the honest group. To lie and manipulate is a massive advantage.

[Ferret7446]

In general, self defense is evolutionarily necessary or you'll get wiped out. Recall the stable state of the prisoners dilemma