[npodbielski]

Probably they do not even think about it. Have big secluded houses, lot of security, armed guards, cameras etc. They probably do not think about what if power grid will be destroyed/disabled, without power most of security will not work. Armed guards most probably will not throw away their life for them because they have their own life and families to think about when attacked by hundreds of people. Or think that they will be protected by police or military. But those are also rather common folk so probably would rather side with people instead of those techno-nobles. Finally they might think that they will be able to run with helicopter or plane. But you need people to operate those too. And those people may not exactly be willing to help at that time. Or just the road to the airport may be blocked. In short I would say that they just do not comprehand the idea of world do not working in they favour. Of people not willing to do what they want. But the get to that point life for vast number of people would have to get really unbearable.