Sometimes we should trust the gods more than our reason. Religions and Oracles as a mean to introduce randomness in human affairs. We know this concept from Antifragile. Here is an interesting paper that argues that, given the complexity of our world, random decisions are often better than thought decisions because our biases can be much worst than randomness.
It also talks about the uses of random decision in politics. A subject that we already presented in a previous post.