It looks like Congress is keeping the three-headed monster, which I dub Cornzilla, alive cuz we know that ethanol is simply a wiz-bang product that's going to be hugely profitable. This is why it needs government to 1. subsidize it, 2. protect it from foreign competition, and 3. force people to buy it.
Private investors? We don't need no stinkin' private investors! Who needs private investors when we've got politicians willing to keep Cornzilla alive?