Head Strong to Head Case

What happened to Creon from Oedipus to Antigone? In Oedipus, he was the guy who wanted nothing to do with the throne. Was always seeking advice from the Gods, elders, etc., and also giving it to Oedipus or anyone else who needed it. Even when Oedipus loses his temper and falsely accuses Creon, Creon remains calm and attempts to reason with Oedipus. In this first story, he was the guy that everyone liked and was pleased with.
Now we jump to Antigone. In this story Creon appears to be Oedipus 2.0. He goes against the Gods by not allowing Polyneices to be buried or have any type of ceremony for his death. By doing this he is having no respect for the dead. He also refuses to listen to his son Haimon or any of the elders on the issue of Antigone's death sentence. He seems very power hungry, arrogant, and proud, all three characteristics he never showed before taking the throne. Some of the citizens of the state are upset with his actions as ruler because he is at times unjust and disrespectful. Creon has gone from a once level headed, well liked, caring man of royalty to a high tempered, questioned, heartless ruler. This is a change that must have been influenced by the pressure he feels from the responsibility as king. Perhaps he knew this would happen, and this is why he never wanted the throne in the first place.