A patent is an explicit grant of a right to monopolize a market. The whole point is to restrict free trading and competition.
IV is probably the best example of don't hate the player, hate the game. They've looked at the game and figured out how to play it. It's like the expert Scrabble players who know all the Scrabble words, but none of the actual definitions. It's completely legal, but probably not in the original spirit of the game.
Maybe even forbid licensing all together, at least for some kinds of patents?
Or, some mandatory licensing scheme dependent on the kind of patent with a low enough fixed percentage of the price?