I worked in the financial markets for years, both on the trading floor and upstairs. jj64 has got it absolutely right. In fairness, the vast, vast majority of the time this is the proper level of detachment needed on the job to be most effective. Particularly in frenzied market conditions, the MORE I devalued the money in my mind the better the focus, and the better my decisionmaking was.
Unfortunately for financial types (and others), this detachment often carries over into the real world. These guys really do tend to live in a bubble, socializing with only one another, and reinforcing each other's 'Ayn Rand-ian' sense of ultimate entitlement, sometimes explicitly, after drinks. Short phrases like 'hey, that's the market' (especially if the market's been manipulated) or 'It is what it is' (when what it is is a preventible travesty) suffice in the place of taking responsibility for things the individual can change, whether for an entire investment firm, bank, or just himself.