Hillary wouldn't benefit from Obama's demise anymore that Gerald Ford benefited from Nixon's. To the contrary, if one of these scandals breaks wide open, the chances of a Dem winning the White House in 2016 drop precipitously.
Even now the White House is Hillary’s to lose in 2016 - if she can make Obama look like he’s universally corrupt it shifts the blame on Benghazi off of her and back to him, and there’ll be minimal loss in the ranks of those non-thinking Hillarybots who’ve been waiting to vote for her for going on a couple of decades now........