In the first few decades after European co-operation got underway, we were able to reach some kind of consensus on the role of central banks. And their relationship with society. This general view was threefold: one: central banks served society best if they focused primarily on price stability. two: central banks played a relatively narrow role in financial stability.
Yes, they should be ready to provide emergency liquidity, while promoting the stability of the payment system, but that is where it stopped. three: central banks should leave micro-prudential supervision and regulation to other, independent parties. That generally meant outside the central bank! (although there were some exceptions, including DNB).