When Satoshi Nakamoto created Bitcoin, the real intention was for Bitcoin to become this "magic pill". He hoped that Bitcoin will end the exploitation by the banking cartels. Still a long way to go, but if Bitcoin becomes popular, then it is going to be very bad for the banksters.
It would only be bad for bankers if they do not have any investment in Bitcoin. I imagine some of the are hoarding bitcoins since it has been in headlines for many years. Bankers have enough fiat to get into as many speculative markets as they wish.