Unfortunately those at the top don't give a shit about those st the bottom.
There are so many layers of management at City, and it's so structured, that the Directors and top Managers never get to hear about the bad treatment of staff.
No doubt targets have to be met, but there is a proper way of treating staff to reach those targets. And it's not by (verbal) bullying.
All the guff about Jamie Oliver and that American Catering company, and predictably our catering and the way the catering staff are treated is no different to many other places.
The Directors at City need to drag these low level Managers in and remind them of the roles, and their responsibility of treating staff correctly.