To begin with: Not only Spidey said "with great power comes great responsibility."

Because some reminders are meant to be worth repeating:

"It cannot be forgotten-- the great possibilities of mass media in promoting dialogue, becoming vehicles for reciprocal knowledge, of solidarity and of peace. They become a powerful resource for good if used to foster understanding between peoples, a destructive 'weapon' if used to foster injustice and conflicts."

-- Pope John Paul II

"Whoever controls the media--the images--controls the culture."

-- Allen Ginsberg