Answer:
That his acceptance is intended to help his children and his people is the reason why Oedipus accepting his fate ennobles him in "Oedipus Rex" by Sophocles (495 B.C.E. - 405 B.C.E.).
Specifically, Theban King Oedipus is told that the pestilence afflicting Thebes will end with the identification and punishment of the guilty in King Laius' murder. His investigation reveals that he indeed is Laius' murderer. He shows acceptance of his fate in blinding himself and handing himself over to house arrest even though his crimes are committed because of a mistaken self-image and without intent or motive.