Social: We see in this description the precise conditions we expect of the kingmen. This is the party who has wanted a king-led government all along, and their first act in Zarahemla has been to establish a king. They also presume that by surrendering the country to Ammoron that they will be allowed to retain their position as elite in the land. The precise conditions we would expect for a Mesoamerican conflict are being displayed.
We should also realize that this conflict is not a new one, but one that has been festering in Nephite society for years. What is now occurring is an escalation of the pressures to become more like the rest of the world, and to throw off the unique Nephite forms that separate them from their surrounding world. The people in power are now numerically superior in their desires. Some of the this shift in power is doubtless due to the diversion of manpower to the two military fronts on the east and the west, as those men appear to be loyal to the Nephite ideals. With those men moved away, the remaining men were those who did not favor the war, but rather preferred Lamanite rule. This shift in the numerical power allowed for the taking of Zarahemla.