Trade unionism springs to mind. If the hierarchy is broken, you've got to organise against it. Yes you can quit and join somewhere else, but if the behaviour is

Trade unionism springs to mind. If the hierarchy is broken, you've got to organise against it. Yes you can quit and join somewhere else, but if the behaviour is actually spreading then eventually you're going to run out of good employers to work for. The only other thing is the company pushing an anti-bullying drive from the very top level with a shakeup of the management structure to break up any structures which keep the behaviour in place, but that's unlikely if the company believes that management bullying is either a non-issue or actively condones it (perhaps because they believe that the bullying behaviour keeps workers in line).