(To Dalai Lama's tweet. The content is he's saying merely praying cannot bring peace, just need action)
Aristotle thought opposite, he said theoria (theory) was most influential. Because God will do theoretical activity only, by him.
On the other hand, Wang Yangming thought true knowledge brought also activity necessarily, by his integration theory. Socrates was resemble too.
Your thought is similar with the latter.
Why do you think as if activity needs to change the world? Someday I want to know it.