What if the unions hire lawyers for negotiation, and so do the companies? Then everyone except the lawyers loses out. Unions need to pay lobbyists so politicia

What if the unions hire lawyers for negotiation, and so do the companies? Then everyone except the lawyers loses out. Unions need to pay lobbyists so politicians don't repeal the laws they use, lawyers to review any agreements with the companies, possibly decrease the pool of revenue available to be split between workers and management(say, if doing something new gets caught up in negotiations and they lose first-mover advantage), advertising campaigns to convince people that unions are good, etc. Depending on exact circumstances, they could be good for both companies and workers, or bad for both. I'm also skeptical that companies are so competent that we should model them as ideal agents optimizing for profit EV. There are plenty of bankrupt incompetent companies, and while the remainder are the product of "natural selection", they only need to be fit enough to survive and not true optimizers. It's entirely possible that a company could benefit from unions, but management would be too prideful about losing control.