The only way to change the world is to invent something that a lot of people like.
The item you invent can be anything from a paper clip to a philosophy, but it must fulfill this criterion.
In the past, it was possible to change the world by inheriting a crown and exercising its power. But today, the only way to obtain political power is to invent a persona and/or platform that a lot of people like.
If you think that you can change the world without inventing something, then you will probably end up becoming a disposable tool for an ideology or organization that someone else invented.