I assume being able to have face to face off the record conversations providing plausible deniability to participants is one of the big reasons finance and other related businesses like to be in Manhattan.
Perhaps also a factor in why some managers prefer to manage employees in-person rather than remotely.
When it comes to avoiding the record, it doesn't have to be lofty corrupt/ish deals or schemes, but also cases like certain anti-union threats, or even plain personal power-tripping.
When it comes to avoiding the record, it doesn't have to be lofty corrupt/ish deals or schemes, but also cases like certain anti-union threats, or even plain personal power-tripping.