re: Deserved humiliations
Iraq has said many times it didn't have WMD's anymore.
Not being believed and having to comply to international inspections was considered particularly humiliating to Saddam; that's why he was uncooperative.
Given Saddam's past performance in this regard, what lunatic would have believed him?
Just a few examples:
Timeline of Iraqi inspection process
DOD presentation on Iraqi concealment and deception
Iraq's concealment of nuclear programs after the first Gulf War.