The gods come off as all knowing and infallible beings, but in the case of the prophecy of Oedipus killing his father and marrying his mother, the people are trying to defy the same gods that they believe to always be right. The people who are able to talk with the gods are just the oracles at the various temples of each god, but anybody is able to just cry out to a god and shout "But why?!" at any time they so please. The dependence upon the oracles means that people have to go back and forth to them when they get a prophecy because first they have to get it, then go tell all of their friends and family who want to know the answer, then go back to tell the oracle that the message was wrong and then return once again to everybody to tell them that the oracle told them the exact same thing a second time. With all of this trekking back and forth, it doesn't appear that people do anything else except for getting messages from the oracle and contesting them with the help of their friends and family, rather than taking care of their actual duties of being the king or an efficient intercity messenger.
Scene Analysis
16 years ago