Now it’s true, he valiantly attempted to help Dorothy get back to Kansas, declaring that he would take her there himself, but that was only AFTER he was exposed as a fraud. Since Sociopaths are known to have entrepreneurial versatility, the minute he was no longer going to be revered by his loyal subjects as all the all-powerful, all knowing OZ, he had to quickly shift gears to Savior (another favorite of the sociopath).