How does Oedipus' curiosity ruin him at the end of the play?

I tend to
think that' curiosity is linked to his hamartia, or tragic flaw, of pride.  Oedipus' insistence
on the truth is one in which he is able to fully demonstrate his own curiosity.  Oedipus fails
to demonstrate any humility in this process.  His own desire to solve the riddle of why the
people of Thebes suffers and demonstrate a capacity to almost flaunt the power of
the...