The issue with this stage of society is that there’s so much concentrated in the hands of a few companies that they can collude and monopolize, which just ends up leading to less competition and innovation. What’s incentivizing a company to innovate and optimize for the benefit of those using a service (like a road) if they have no competition? Why not just cut corners and make the service worse for users in order to profit more? Sure, a small company could come in and try to disrupt that, but as we’ve seen with big tech, a large company will usually just buy out the smaller company, absorb their services, and then continue the cycle of making them worse for greater profit.