Mauritania and Iceland have a bigger story than just qualifying for the round of 16 or the quarter-finals in a continental tournament. They have made football more than just a game, as a reality and not a romantic slogan.
Football has some effect. Is it positive? negative? big? Limited? The answer changes depending on what's happening in each habitat of the game. The decision remains in the hands of the bearer. Whoever wants football to be opium for the people, it will be for him, and whoever wants life through it will give him what he wants.