If capitalists can run things, than why were the unions that Leo XIII called for necessary?
Actually, you were right the first time - with capitalists running things.
Why are there unions? Because there has been stupid management.
Out here in Oregon we saw a beautiful example of some of the idiocy that passes itself off in union/non union conversations, some years ago. Tektronix, in Beaverton, sold off one of its subdivisions (televisions, if I recall correctly) to Xerox.
The Tek group were non-union, and were compensated fairly, with bonuses for exceptional work.
Xerox was unionized, and the union set their hats to unionize the new subdivision.
I can remember the (not very bright) response, when this was being reported in the news. The guys from Tek basically said - hey, we are paid fairly with salaries and benefits, and those of us who perform exceptionally well are further compensated.
The union guy’s response? It was only favoritism, because it was the same people who kept getting the bonuses.
Which was another way of saying everybody is equal, and puts forth equal effort, so because all effort is equal, there is no possibility that someone performed exceptionally well.
The stupidity of the answer - as well as what was being said underneath it - showed the mind block to reality.
Where everyone does exactly the same job, and all are trained equally, there are still going to be differences in skills and abilities. however, they will be somewhat ameliorated by training. Where skills and jobs are not completely equal, then recognizing that is a matter of accepting reality.
We have unions because management too often has been unwilling to adequately pay workers for fair work or address other real concerns; one only has to know some of the working conditions of miners in West Virginia before unionization to understand how badly a company can act towards its employees. Where management has seen the value of employee contribution, unions have not succeeded - or for that matter, not been needed.
Unions likely will never go away, but there certainly is room to question where they are existing in some areas (teachers come to mind immediately). There is also room to question what unions do in terms of negotiations; the Wobblies out here (dock workers) shut down international shipping over the insistence that one of their workers “supervise” another union (electricians) when the electrician hooked up or unhooked electrical connections to power refrigeration in units brought in by ship. Like a) supervision was needed - NOT; and b) like the dock worker really had any clue - NOT. It was purely job protection for work that was not needed; but they had the clout to literally interfere with international shipping - and may have soiled their own bedding as at least one international shipper pulled out of the area. Results - less work and lower income for the Wobblies.
Voltaire was right: the problem with common sense is that it is not all that common. On either side.
All animals are equal, except some animals (pigs) are more equal than others.
In a just society, there is no need for unions. Except that a just society does not exist in toto; and the result is that injustice occurs on both sides. Whose ox is gored the worst too often is the only real accounting which can be done.