I think the best way, by far, to change the world is to be an example of that change. People are inspired by people who do things differently and still find their measure of success (however that would be defined, success in marriage, relationships, in raising children, achieving FIRE, achieving dreams that would be considered "impossible," etc, etc).
It is relatively rare for people to buck the system, conformity, in-the-box thinking, etc. So when someone visibly does it, there are various reactions to it. 1) "How dare you get out of the box?! Get back in!", 2) "That's really cool, but I could never do it," and/or 3) "That's really cool, I'll see if I can achieve my own measure of success."
You'll get people talkin' one way or another. ;)