It’s a small mistake compared with the ones that led to the unraveling of our financial system, but it said a lot about the man in charge of Countrywide. Back in May, Chairman Angelo Mozilo replied to an e-mail from a distressed homeowner, calling his plea for help “disgusting” because it appeared that he’d been “coached” by the internet. Countrywide later said that Mozilo “regretted any misunderstanding caused by his inadvertent response to an e-mail.”