Is the Criticism of Wall Street by Obama Sincere?

Recall the numerous venomous comments coming from the Obama administration about greedy Wall Street companies. But don't take the comments too seriously. Why? Read AIG Hired To Regulate AIG. President Obama nominated James Cole to be Deputy Attorney General. Who has Cole worked on behalf of before? AIG. AIG was investigated by the very same Department of Justice. AIG was very much involved in events that led to the much maligned "Wall Street bailout" of 2008. If the criticism of Wall Street is sincere, wouldn't you think that in a nation as large as the USA, some other candidate could be found?