Why do people develop loyalty toward the groups they join? Evolution? Reciprocity? Indoctrination?
Either way, not unusual. Happens all the time in the military ("no such thing as an ex-marine"), around football clubs ("once a red, always a red")... pretty much everywhere there are humans, especially men in high-pressure environments.
"During that time, the New York Fed's chairman, Stephen Friedman, sat on Goldman's board and had a large holding in Goldman stock, which because of Goldman's new status as a bank holding company was a violation of Federal Reserve policy."
In the world of regular employment, usually they don't. But in the tight-knit circle of CXO-level personnel of major financial institutions that may not be the case. It strikes me as a club, and to stay in the club one must help other members of the club and practice a bit of "omertà."
