Game theory (also, spoilers):
The work rules stated that there are no subitems because they didn't actually exist, at least not before the work rules got torn out. And whoever tore it out is trying to control your actions through the subitems, considering how they were worded and how spot-on they always were at every moment. And this is why Alexis is so quick to fire you when you admit that the work rules got torn out of your book.