For example one of the problem is that not all professions are unionized for example, so o get more profit and power the unions need to stifle innovation and steer the government only toward heavy industry to the destriment of almost every other sector
Also being national they seldom talk directly with workers and plant owners, and prefer to play their hands at the political table, often ignoring the specificity of issues.
And since their decision have national level ramification, every singe one needs months if not years to mature, implement and execute. Like, most national contracts are expired and have wages that are ridicolous by 2017 standards and base salary need to be supplemented in various, highly taxed ways, and new form of contracts are impossible to create (IT for example is hired under industrial or commerce contract, as the gategory didn’t exist at the time and there’s no reasonable way to create it now)