The banking sector has been one of the fortress to which government and it's institutions used to steal money and control their economic power of citizens, they use the CBN to set new interest rates, they create currency de-valuetion and also creat inflation and of these is so that they can manipulate the entire food-chain in the economy.
When you look critically the Aura that Bitcoin comes with, it invalidate all of those bottlenecks that is been created by the government, Bitcoin allows independent control of your money and doesn't allow manipulation as it is always seen by the banks.