I create web apps. Nothing special. One of my clients (for quiet many years now) is one bank (mid size european bank). Part of apps i create are apps that help them enforce ECB (European Central Bank) rules. I basically earn my living on implementing stuff that ECB pushes down their throat.
Saying that central banks can "pressure commercial banks" is extreme understatement. They do no "pressure" them.....that would mean that commercial banks have option not to do what is told when is told. You know, pressure can be withstand, you can resist to a pressure.
No....central banks simply tell them what exactly they have to do and how fast they have to do it. I earned more then few times extra money because projects were set up so that they have to be executed in really short period of time. Consequences for not doing as told are nuclear.
As someone who is close to it, i can say, central banks have absolute and direct power over absolutely everything as far as money goes.
Like in army, with generals and soldiers. Generals don't have to be at front line for soldiers to do exactly what they want em to do or be shot. Generals, like central banks, do not give proposals, they give strict orders with strict penalties.