I view it in a more fight clubesque perspective.
The first rule of prepping is you do not talk about prepping.
The second rule of prepping is YOU DO NOT TALK ABOUT PREPPING!
Outside of my wife and some relatively anonymous blogging I pretty much stick to it.
That works for some, but some of us are more interested in promoting preparedness, sharing information on preparedness and explaining our gear and preparations to people, and prep partly to be there to help in emergencies.
I have already lived through a number of emergencies, and helping and neighborliness and leadership is all part of the benefits of the experiences.