Is there any 'Leadership' in the City of London?

The 'Leadership' of the City of London (if there is something worth that name) is outmaneuvred at every stage. Not surprising as it is composed of superannuated 'worthies'. Decisive action a la De Gaulle would stop the interventionists on the Continent dead in their tracks. What would happen if anyone would want to dismantle the EU agricultural subidy gravy train over France's wishes?