Not a fan of Bernanke.
Mainly because I don't believe he is a supporter of the free markets, as some here (for whatever reason) think he is...
The short answer is that "the banking sector is special". You can't just restart the banking sector overnight and it would take years to rebuild the money supply (the portion that results from fractional reserve banking) if it were wiped out by a severe banking contraction akin to the 1930's (When the Fed pretended as if it didn't exist) or the 1830's (the last time the US thought it could go without a central banking system). The Fed's job is to acheive stability in the money supply, it is by nature a violation of the free market, and frankly one I am perfectly fine with considering the alternative.