I'll presume that in an apocalyptic situation, there'd be no world order because of chaos and destruction. The human race would be endangered and perhaps at the brink of extinction. In this sort of world, the most important thing would be "trying to survive." Human beings would immediately develop different survival instincts. There'd be no use for money, power, position and titles. The one who holds the mantle would be the one that has what people need-food, water, protection. I don't think there'd be any need for paper money or virtual currency. Perhaps trade by batter would surface. Give what you have and take what you need. I would definitely dread such a situation. Only the fit will survive .The laws of nature will naturally select those who would survive and probably create a new world order or else it might be the end of mankind.