He didn’t hire his girlfriend. When he was made President of the Worldbank, she was already working there for years. She was entitled to a pay raise, which he had to sign. He didn’t want to (conflict of interest), but the commies in the bank assured him to do so, by saying there would be no problem. He was naive enough to follow them, and got caught in their trap.
See my #13. I just think the both of them — smart people, by most accounts — should have known this was an arrangement that just wouldn’t work.
He should have gotten the people at the bank to get EVERYTHING IN WRITING that giving his girlfriend a raise was not his idea or suggestion.