It touches on life under an authoritarian regime, the potential power of an apparently powerless individual, the choices and balance between personal safety and "taking a stand"... Through a repetitive bureaucratic mechanical task (that complicates over time and that you need to master well enough to earn a living), you cruise through the story and there are a lot of events and endings to discover that come from your choices. It's not just a bureaucratic simulator.
(Glory to Arstotzka)