What governments need to be concerned about are the things where the public good can't be managed by the market forces. People can't be expected to look at minute details of every single thing that's part of their lives. Also if choice is restricted because, for example, every maker does X thing, then people can't really vote with their wallet, because there's no alternative. I recognize that this kind of control is not flawless, but I take it, considering the alternatives we have seen so far in history.