Editing these documents for house graphic style and grammar was the very-well-paid temp job that covered my costs of being at college in London.
Lehman Brothers, Morgan Stanley, Goldman Sachs, BZW all had a 'graphics department' in the mid-90s and I worked briefly for all of them. Good job for them, too - you wouldn't believe the crap that some merchant bankers would want to give to clients.
(In fact, several of the banks had specific instructions to us about not permitting egregiously-misleading graphs get into the wild. X^2 graph axes, truncated axes designed to make a 1% price change look more significant... I remember seeing a couple of all of them every week.)
US securities laws in particular made getting in and out of the room a very complex affair. Depending on which banker's doc you were working on right now, you had to discuss things outside of the door at one end or the other of our office, but they weren't permitted to enter the room and their door passes wouldn't open our door. The little corner of Lehman's in London we were in was over ten minutes of card-waving away from the front entrance.
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