On the contrary, it has only been legal for banks to do this since Billy Clintoooon's de-regulation. The banks are leading the war charge against labor in our Nation. Now, Unions definitely misused their power to the detriment of the Nation and their members, nevertheless they began with a useful function and moral high ground. Corporate charters used to be narrowly defined to prevent overlap into sections that allowed monopolistic practices, but since Corporate Crime just gets fines and no criminal punishment, then it is automatically legal to do anything they want because there is no punishment, and that is where we are and what is happening. JPMorgan Chase (JPMorgan was bought out by David Rockefeller's Chase Manhatten Bank that was built with StandardOil/Exxon monies) pays a $13 billion fine but no criminal prosecutions and it is just the tip of the iceberg. It has always been a Corporate/Labor War in the USA and that is why Charlie Chaplin was blackballed in the USA, and Corporate has won since they managed to purchase the SCOTUS ( Citizens United) as it appears.