I think in general and in reality what you say is correct and its the well known or known to be wealthy or with inflence that would be the ones that footage would be kept but you cannot rule out the possibilty that at some point in the future, a month, a year, 10 years that circutances would lead to footage that was kept was sold to some porn site when the brothel owners go out of biz and they realise they have all this footage that is worth money to them. Its also not impossible that depending on the scupples of the brothel owners (and lets face it do ye really want to be in a position to risk this) that they follow even the ordinary joes to see what the car reg is and follow that up with a view to extortion. Not saying its likely I am saying its a possibility.
One silver lining from all this is that people might (if for no other reason then self interest) start thinking about the ways that going to a brothel (however well run perhaps) could bite them even years down the track when they may have stopped punting and are married etc or have worked their way to a higher position job wise (and so become of interest to then blackmail).
Another silver lining in this is people might start seeing true independents with good reps if they truly wish to avoid even the remotest chance of anything coming back to bite them in the recent or long term.
Its an irony that cameras set up to ensure that the greedy do not get short changed by those they control may lose income by driving away the very people they depend on and the only cog in the wheel that they cannot control or get to do what they want... The patron...who may not care a damn about the conditions the escort has to work under but do not go there anymore out of self interest if nothing else.
Its like everything in this realm, self interest is what drives every facet and perhaps that motivation may work towards something positive, more custom to those that are independent.
It would seem that in fact it does indeed matter if an escort is indy or not..... regardless of her being "hot"