We're seeing "it's never enough" play out right in front of our eyes.
No matter how much the business makes, at some point their stock price comes up to the equilibrium with the rest of market. And since for CEO to get bonus he needs stock to go up, the businesses inevitably start applying dirty tricks at one point or another. That's just a system
Then the problem is they don't have a real competitor. I suspect the government aided them in getting in that position because we export those machines, and the US likes the strategic position of being the source of everyone's farm equipment.
Hard to break a monopoly when the government considers maintaining it to be a strategic interest.