Dock Workers
Brad DeLong argues the dock workers make out better with Taft-Hartley injunction. My guess is he is right. A bunch of pissed off longshoreman can work by the rules and not be fined (as the comment suggested). They simply follow the strict orders of management and by management makes mistakes. Usually labor helps watch for those, but they don’t have to and they are fully doing their job.
I believe someone made the argument that all of the gummint regulations were clearly a problem since one had to ignore them to make the docks work. This is a poor understanding of the modern workplace. While some of the OSHA rules are a bit arcane, overall the most burdensome regulations are from insurance companies.