Power both corrupts and metaphorically blinds characters in Antigone. The clearest example of power is King Creon of Thebes, who is arrogant, unperceptive, and downright mean to people around him.
In Antigone, power corrupts. When simply the King's brother-in-law, Creon was a reasonable man, whereas when he inherits the role of king, he becomes arrogant and cruel.