perspective is a powerful thing. usually, from the view of the have-nots, every single person making more than them is making too much. it doesn't matter at all if their jobs are similar or not. there is rationalization, over-inflated egos and jealousy that they can rely on to justify the predicament they find themselves in.
otoh, there are unions who do a good job at the bargaining table, and there are union members who stand united to support whoever is bargaining for them.
to portray management as the hapless victims in any bargaining agreement is to ignore the fact that it's management that has agreed to terms after what may have been a months long arduous task to find common ground.
how anyone can blame only the unions for the working conditions at any place of employ that unions exist and completely ignore the fact that management is expressly complicit in contributing to the working conditions due to the bargaining agreement that both parties agreed to is beyond comprehension.
if management thought that the policies of the unions that exists at their facilities were hindering and/or obstructing their management rights to run the company in a way that ensures profitability and longevity, they have the means to re-negotiate their contracts or wait until the agreement they have in place expires and negotiate anew.
if management cannot enforce their company policies as agreed to in their bargaining agreement it is not the fault nor the job of the unions to step in and do the job for them.
if management cannot control maverick managers that feel that the unions have absolutely no say in how they run their domains, then it is management's job to control and discipline their own, for the simple reason that these wayward managers are violating terms of the contract that their own management agreed to. thus they are not disobeying the union, they are disobeying their own management team.
i can go on and on with this, but the point needs to be made that management is just as responsible or even more so for the working conditions found at any establishment that allow unions to exist.