Great comment. What you are describing is called a 'preference cascade'.
> In short, average people behave the way they think they ought to, even though that behavior might not reflect their own personal feelings. Given a sufficient "A-HA!" moment when they discover that their personal feelings are shared by a large portion of the population their behavior may change dramatically. An example of this is the British colonists before and after publication of Thomas Paine's Common Sense. A year before the Declaration of Independence, America was full of patriotic British convinced that things could be worked out with King George, but on July 4, 1776 the colonies were full of Americans determined that they needed independence. Another is the relatively recent "Arab Spring."