Then again, the arrogance of power can, no doubt, encourage people to feel as though the rules simply don't apply to them -- and few could deny that Obama has a fair share of self-regard. What's more, people can change (or their real character can fully emerge). The Barack Obama I knew at law school was a big liberal, but he didn't seem to enjoy attacking his adversaries, and he still had a sense of humor. But that's before he had anything to lose -- or any significant opposition.
It will be interesting to see how this story unfolds. I'd be afraid to be the one to have to confess to his wife, wouldn't you?