Well does it? If I would be able to break SHA2 and make myself rich with it, I would need to be sure that nobody would find out, that Bitcoin can be manipulated. The second anyone is aware, I wouldn't be rich anymore.
Wouldn't that be the play, though? Get a buttload of bitcoin, turn it into real money, then destroy bitcoin. If you found a break in bitcoin you wouldn't rely on keeping your wealth in bitcoin and then hoping nobody else discovers it.