The world would still remained world even withoutbitcoin like in the past, long before bank is established or bitcoin was created people trade their product in many ways, now that we ahve all this new technology which I believe is helpful and make our life easier we no longer lnow how to live without them, because we already adapted their system so bitcoin changed our way of thinking of banking, trading, transacting and all that.
But this is about global trade and for that we are dependent on a financial infrastructure that allows for cross boarder transactions with low friction and low costs. Bitcoin can't achieve that yet, but once it does banks have to innovate a lot. They know that and that is why they played for time and played Bitcoin down as good as they could.