Right, inflation is based on consumption. So home prices going up is not inflation, as homes are considered investments. So when Bill Gates becomes the world's largest private farm-owner and buys a billion dollars worth of farmland, there's no inflation there, or is there?
Bill is in it for the short-term capital holding. He's going to do what he can to make as much money as he can, but if he thinks this is just a short-term flip, no need to build a full company around this, it's not worth it. He'll rent out what he can rent, find some sub-contractors to do what they can, and the harder to rent stuff just sits there.
That's the problem here. He's one man, with many responsibilities, hoarding over what might be 4000 different lots worth $250k. He just doesn't have the attention to deal with that. So while normal farmland owners will use everything they have, now we have a bunch of land empty, and that empty land is pushing the supply demand curve of all farmland over. And that's just one man doing a one percent hedge.
This same exact issue is happening in housing, and its happening at a scale much larger than a single billionaire. I bet there are thousands upon thousands of used cars just sitting in a field somewhere. There are legitimate business that need to ensure that they can get oil or steel or lumber or whatever else they need, and the futures markets are all insane because these investors know that the recession will hit before they need to buy, and everything else will drop in proportion to these commodities.