Who's to blame for the current economic crisis?

I've been watching the hearings on CEO compensation for the CEOs of the companys who lost the most money in the credit crisis. There's a lot of dancing and weaving going on. There's a lot of justification as to why greed is good.

I know the background on the credit crisis is that packages of mortgages were sold that included sub-prime mortgages, but these packages weren't properly valued to reflect the risk associated with sub-prime as we moved into an economic slowdown. When people started to default, everyone panicked because of their exposure to risk they didn't know about.

In addition, businesses and Republicans have pressed for extensive deregulation over the years that created an environment where anything goes as long as you make money.

The general outlook in the US has become - if you make money, you're god. If you don't, you don't deserve to live. If you make money, anything you do is overlooked unless is raises to the level of an Enron. If you don't make money, everyone is justified in attacking you left right and center and forcing you to comply with the greed mentality currently fashionable in the US.

Greed runs American society today.

In addition, we're exporting trillions of dollars to the Iraq and Afghanistan war while war profiteers are hauling it away to the bank while they avoid taxes.

That raises the question - who is to blame for the credit crisis? The poor schmuck who couldn't pay his mortgage because he lost his job because it was shipped overseas? The crooked finance guy who mispriced the mortgage bundles and sold them to someone he didn't care about? The CEOs who didn't really care about anything as long as they get theirs? The greed mentality in American society? The poor? The Republicans and their policies? The Democrats? The Iraq War? The war profiteers?

In your view, who's to blame?