The bitcoins doesn't solve the problems we face with our banking system,the bitcoin wasn't created to block the loopholes or shortcomings of our banking system,you definitely can't keep fiat currencies on your wallet and each and everyone of us makes use of them,the more reason why banks are indispensable
What the blockchain technology and the bitcoin does is put control in our palms as we can facilitate cryptocurrency transactions without any third party interference
Thus the individuals and users on this platform alone can influence the bitcoin,as you alone control your assets,at least until it's converted to Fiat currencies