There are people working in banks "which we own"(!) who are earning hundreds of thousands, or even a million pounds plus, in annual salaries and bonuses.
There are not too many of these people and although they are "bank workers" they are actually very specialist market traders who pay 40% (soon to be 50%) of their earnings in tax and make the majority of the bank's profits.
They all work in the part of the bank in a business that used to be called "merchant banking" until the 'big bang' in the eighties when high street banks were allowed to acquire and consolidate the smaller, but highly profitable merchant banks.
Rather than put a 'cap' on the salaries of these highly stressed traders, I think it would be much preferable for the banks to float off these activites, thus releasing much needed capital. Investors could take a stake in the new concerns and the "banks" could return to their original core business of taking deposits and advancing loans.
GT