What you don't know won't hurt you...

Sometimes Truth has a very uncanny probability that it will cause more harm than good.  I would say that Truth is ultimately good because anything other than the truth is known as deception, and deceptive behaviors thrive on lies.  Therefore, that which is true is more coveted than that which is full of deceit.  In Oedipus' case, Truth promoted pain and regret; however, if Oedipus had known Truth sooner, then it is obvious that his fate could have been altered.  Truth was the ultimate source of good for Oedipus, but ignorance proved to be his ultimate demise.  Eventually, his fate became inevitable, and he chose to react to his interaction with Truth.  Although his destiny was stained by the blood of his father, Oedipus did fulfill his prophesied fate.  The bigger question is whether fate is an individual direction for life or a cluster of interchangeable paths that are selected by the decisions made in life.  If this is true, then perhaps Oedipus could have received knowledge in a more mature manner and spared himself the pain.