What would be nice...is if center-level and lower management had their own white collar union to protect them from Corporate.
Most sups who treat their hourly employees poorly do so out of fear...fear of failing to meet the impossible and often absurd expectations placed upon them by upper level management. Take that fear away, and they will probably treat their people a lot better and actually be more effective managers.
UPS is a company that rewards its management for mindless obedience and manipulation of statistics far more than creative thinking and problem solving. Its not what you accomplish that gets you promoted; rather, it is how good you look on paper pretending to accomplish it. Dont take risks; dont draw attention to yourself by daring to think outside of the box; instead, play it safe, manipulate the metrics, and spoon feed your immediate superior whatever statistics he or she finds to be important that week. A union for low-level sups would encourage them to stand up for themselves and their people rather than reacting out of fear.