The ending is just some anti-climactic zietgiest inspired nonsense.
The fate of mankind is that we will die by our superstitions. One day we will all starve to death, beside a mountain of food because we don't have enough money to believe that we should be allowed to eat it. We will die in the cold outside of vacant housing because we don't have enough money to believe that we should be allowed to go inside, and coming back to the OT, we will die of illnesses, the cure for which also just a dollar away.