Everyone that plucks up the courage to leave contributes to the societies downfall. I see it as similair to those times in history where morals overtook fears such as with slavery, racism, nazi germany etc. Evil prevais when good men do nothing!
I hope I would be one of the people being beaten for defending black people or go to war for a slaves freedom. However, right now, we do have a means to make a moral desicion that can either be part of the problem, or the solution....
Also for those with children, I can't think of a worse thing to teach or show your children, than to stand by a movement you don't believe in and even vehemently disagree with, yet do and say nothing.... even go door to door promoting It! Maybe even feeding the tripe to your very own precious children!
Courage and free thinking will bring Watchtower down, from the inside out....... but that is not any one person's duty, just do the right thing by yourself and your family, if enough do that it will fall soon enough.