So then the question is, what does it take?
A compilation of things
As in I do not think there is a
"
Step-by-Step Guide to Changing the World"
Simply a good idea? (why do bad ideas change the world as well, ie. Hitler?)
Good and bad people influence our ideas.
There are things in cultures we consider "good" and "bad", ideas we consider "benevolent" and "malevolent", actions that are "right" and "wrong".
Influences are influences, ideas are ideas, actions are actions.. all of them move people. It does not matter if they are good or bad.
or is the person proposing/supporting the idea more important? (MLK, Hitler, MalcolmX, all great speakers)
Those are all people who knew how to be heard. There are plenty of people who should be heard who are not. If you can make yourself heard, you leave people with no chance but to listen.
or is it something else all together?
It is everything put together.
I personally stick strong with what I said, one person can't change the world.. they can change the way we do something, change how things are said, change the process of our thoughts, change what is popular, change music, change art, change clothing, etc.
They can alter an aspect of the world... so yes, they change the world; only one aspect at a time.