I disagree that Costner acted hypocritically.
It seems hypocritical to make a big deal about a religion, recite the mantra of the chief prophet of that religion and at the same time violate one of that prophets main teachings: Matthew 5:27, Let your yes mean Yes.
though he was willfully deceptive he thinks he was acting wholly within his belief system by prioritizing ideals
Cobblers. The belief system didn't have clauses added to it. It's plain and simple and like most self-professed Christians he fails to live up to it and picks and chooses which bits he wants to follow and when.
i.e. A HYPOCRITE !!
You and I act contrary to a belief system we once held. I don’t think that makes either of us hypocrites or otherwise immoral as though we did something wrong, so long as we are willing to honestly answer for our personal actions and have sound reasons for those actions . Do you?
It would if I still professed to believe in that belief system and preach it to others while violating it's principals. But then I don't do that so no, I'm not a hypocrite.
Having 'sound reasons' for our actions is not an excuse - who get's to decide if they are sound or not? You?