I hear this argument a lot, but I don't buy it. Professional athletes and Hollywood actors have some of the highest wage differences of any profession and yet b

I hear this argument a lot, but I don't buy it. Professional athletes and Hollywood actors have some of the highest wage differences of any profession and yet both are fully unionized. Those fields have so much negotiation that people typically hire an agent just to handle negotiations for them. A union doesn't stop the best athletes and actors from getting paid millions, why would it stop the best engineers from getting a measly few hundred thousand?