With Great Power Comes Great Responsibility

This expression has been attributed to everyone from Voltaire to Uncle Ben in the Spider-Man comic book; but what does it mean?  

The phrase “Great powers bring great responsibilities” is said by Peter’s foster father and uncle, “Uncle Ben”, in the form of advice or warning. Ignoring what would be the last words he would hear from his uncle, Peter decides to employ his new superpowers to win money in a wrestling tournament. He wins the fight, but ends up being deceived by the event's promoter. When a thief steals the promoter’s money, Peter takes revenge by omission: he chooses to let the thief escape. He later learns that his uncle had been shot to death. He starts looking for the killer. When he finally finds him, the hero-in-the-making finds out that it was the same thief that he had let go. The fact naturally awakens a heavy sense of guilt and an acute sense of responsibility and heroism.  It is later repeated by Aunt Mae in Spider-Man: No Way Home.

What is the true origin of the saying?

What power does the media have?

What responsibility do we have to check it?