There are very few things that happen by accident in this world. Even so-called "acts of God" like earthquakes and tsunamis are utterly predictable---though we obviously can't quantify specific dates for them---and in the realm of human commerce, everything happens for a reason. All the cant you hear about "invisible hands" and "self-correcting" wisdom has always been primarily intended to immunize the winners from being denounced as immoral greedy assholes who hoard obscene amounts of wealth while millions of peasants starve---because the fact of the matter is, the reason those people can hoard so much wealth is that policymakers allow them to do it.
---Baron V
Comments