Stimulating Conversation on What Makes a Good Idea Stick in a Society

I recently commented on a post about force not being needed for a good idea to stick. The original post stated that if the idea was truly a "good idea", then people would not need to be forced to adapt it. I gave them my opinion, which is that force, but not violence is needed. I wanted to know how others felt about this. Below, I posted his second comment to my comment and my second comment. Please let me know you perspective on this topic.

Their Comment:

I think you missed the point, people realize that a cup is a great idea, they don't need anyone to convince them of it, they understand it, they see that sticking together is a great idea, it's evident, they recognize good ideas, great ideas, and adapt them, animals do this, everything does this. That is why ideas if they are great, if they are good, will not need you to convince them or argue it fro them, it will be evident. But I want to know, what idea would not be good or has not been good enough that only force will help it along?

My Comment:

Is democracy a good idea? Is freedom of speech a good idea? Is decentralized banking a good idea? Are basic human rights a good idea? Is promotion by a merit based system a good idea rather than a nepotist system?

If you think about the history of countries all over the world and the steps that were taken to remove royalty and other forms governments that had dynasties of family lines you see the trend of force. While there will always be good ideas that most people can agree on being good ideas, there will always be resistance that wants to hold the common good back for a larger gain for a smaller group of people.

Rights and changes have to be fought for. As long as you think that all you have to do is show people how good an idea is and wait and eventually everyone will see that it is the way to go, then all you will be doing is waiting. A catalyst must be created to push people forward. You can blame cognitive dissonance or whatever, but the fact of the matter is no good idea will be put into play without force because it will always disrupt something else that is going on in another lifestyle.

Do me a favor and give me some examples of good ideas that did not require force to implement.