The crime is that there should be NO bank or any other company that is too large to fail! Without the governor on the board to make good business decisions, knowing that a company is "too large to fail" removes any hesitation to properly evaluate the risk accompanying a proposal.
Additionally, it hurts competitors. A risky decision that goes wrong, could put a smaller competitor out of business while the "too large" would just have government money injected into it to save it. This is contrary to a capitalist country. This must stop!