One thing I kept repeating, and I'm still really annoyed that no one else had said it, but why on earth would you put rice full of maggots in with the GOOD RICE?
That isn't any CIA or whatever he is. He would know that you don't contaminate the only good source of food.
It seemed to me that he was trying to exert control over THEIR ration of rice. His argument for storing the contaminated rice was flawed, but it did not stop him from attempting to exert control over their food supply any way that he possibly could.
He really is crazy.