How to change the world?

That is my best question.
If you asked this question you are one of the few people that feel that they are responsible. My greetings from down here because you are a great person.
In your quest, you stumbled upon me , and I happen to have some ideas.
In my personal point of view, the world is a place of a lot of variables. The most important components are :
1-Money or currencies,
2-People mindset and the dilemma of peace and war
3-Virtual realm of computation.
If you are willing to change the world, currencies and money are a key. If you found a way to omit all the currencies or make all the world monetary system to collapse. There is that japanese guy who invented the Bitcoin. But job unfinished, you need to find a way where people will either go back to use metal coins or to use this cryptic currency. The world balance of powers will absolutely be something else.
Another way to change the world is by a unleashing a third world war, I think by looking at the current situation, we are on the edge of this war. If you are willing to be in the History books of next generations, you know what to do!
Otherwise if you are the philanthropic guy, I am encouraging you to start a war against violence, media, secrets of governments and religious clashes spreading to justify wars in the middle east. Find a way, it would be harder than starting a war. But be ready to face the sharks.
If you are a geek, a nerd or a tech guy; you don"t wanna be the talk guy or the murderer. You can change the world by developing the quantum processor, best ways of computation. If quantum processors were available to other sciences, we will be able to cure cancer and develop everything in the world.
There is a lot of work to do, so let us work in our garden!