I suspect it will not change because stopping negotiation is not actually achievable. Certainly you could disallow negotiation for direct, monetary compensation

I suspect it will not change because stopping negotiation is not actually achievable. Certainly you could disallow negotiation for direct, monetary compensation, but that would just push the negotiation into other areas. People would start negotiating for more vacation, more holidays, better benefits, a bigger office, a company car, an assistant, a private "education budget" (ie, pay me to take a vacation) or whatever else they can. The number of ways to compensate someone are limited only by imagination and can move much more quickly than regulation can catch up. A small example of this is when the US froze wages during World War 2, thus employers started offering perks like company-paid health insurance. That has since evolved into the mess we have now - that sure worked out great for everyone, didn't it?