An apparently hidden assumption in this land-ring example is that either all of the ways through the land-ring have also been bought up by its owner(s), or there is no way through the land-ring. In the former case, those who live inside the land-ring have already homesteaded a right-of-way through it. In the latter case, this raises the question of how anyone came to live inside the land-ring in the first place.
Then it doesn’t.
My point is, the market is not guaranteed to be all things to all people. It won’t magically serve you breakfast in bed or make you a millionaire. People who argue that the market is “flawed” because of this are committing the nirvana fallacy.