In my opinion knowledge give you two power.
One is that if you knowlege, you are able to understand other people's feelings.
For instance, you can not be real friend with christian person without understanding christianity.
And then, if you understand other people's feeling, you can become a leader who lead other people.
Two is that knowledge give you hint not to make a mistake.
If you know that the ground where it is raining is slippery, you would not run in the ground.
But you have to be careful about knowledge.
Knowledge is just hint not to mistake, not way to success.
Only taking action based on knowledge brings you goal.