Wasnt this in the Spider man movie, "With great power comes great responsibility".
Well, it seems to me it goes the other way round as well. With great responsibility comes great power. Our actions have consequences. To me one aspect of Buddhist practice is the recognition that we have a startling degree of responsibility for our world. The nature of this responsibility is not an overt obvious kind of responsibility and neither is the power that comes with it. This subtle but vast responsibility is only an effective responsibility to the degree you recognize it. In my view it is appropriate to say that Liberation is a recognition of a transcendent form of responsibility. I dont like the word "power", but I can see how it could also be an appropriate way to describe the recognition of our degree of responsibility in the world. I think you can say that power is the recognition of the ability to act freely and effectively.
"Beautifully taught is the Lord's Dhamma, immediately apparent, timeless, of the nature of a personal invitation, progressive, to be attained by the wise, each for himself." Anguttara Nikaya V.332