A very interesting post and question. I am only speaking from my own experience and everybody's situation is somewhat unique.
I found that "quietly taken actions" provides a better example and drives the point home, eventually, as things happen and people find themselves unprepared, at least to some extent. You can lead a horse to water but you can't force the horse to drink.
My wife and her family all thought of me as the crazy one because of my preparations. I have gotten to the point where I don't discuss the preparedness issue unless it is brought to me via normal conversation.
In the meantime (I am talking of years), those that have made the most fun of me (behind my back) have borrowed my generator (and gasoline) 3 or 4 times when they lost power. 1 niece (and nephew-in-law) has learned that the world is a cruel place and now has a pistol w/a 100 rounds on loan from me, and has actually taken an interest in defending herself and family. Her hubby has experienced firsthand how quickly the "normal" can change and he has quietly promoted preparedness with his wife as well.
I have now ignited an interest in 3 nephews to learn how to camp and backpack, and in learning about edible and medicinal plants.
My wife has experienced the effects of having preparations in case of job loss, hurricanes, etc. She is now believing in what I've been telling her. She now carries a pistol (when appropriate) and has been contributing to preparations by purchasing extra canned goods (and paper goods) when she goes shopping (I purchase dry goods). She also keeps track of our medicinal supplies so that we can proper medications for a while.
Having a thick skin and patience will bring a few around but those who prefer to believe that the Gubmint will take care of them, will continue to believe that regardless of what happens. And yes, those will show up on your doorstep when their view of the world has fallen apart, albeit for a temporary but sufficiently long enought time. Think of a post hurricane situation when the power is down for 3 days or more. When they have drunk all their water and soda's, eaten all their food and then realize that the local stores are still closed.
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QMC, USCG (Ret)
The best luck is what you make yourself!