Also, rent was just one example. In the long run it seems inflation will just go up unless there's heavy regulation of the market, at least on basic goods and services (housing, food, clothing, etc).
Nothing keeps you from raising prices. However, just because people have more money does not mean competition will stop. In fact competition might increase and prices go down, as there is more money to be made and risks/costs go down.
Also, rent was just one example. In the long run it seems inflation will just go up unless there's heavy regulation of the market, at least on basic goods and services (housing, food, clothing, etc).