Let's not forget that the whole nature of content distribution has changed in the last fifteen-odd years.
Let's say you were a model when you were younger. If you did a WAM shoot in 1993, or 1983, or for that matter 1883, unless you were some kind of futurist savant, you had no way of knowing that almost any idiot with a pulse who stumbled across the sole remaining copies of those photos in 2009 would be able to scan them and distribute them to a global audience at negligible cost. You may be a respectable bank vice-president today, but maybe in 1982, when you were a college freshman, you went to a fraternity party at which one of the main attractions was a mudslide. You went down said slide a couple of times and at some point were photographed, covered in mud with your bathing suit *almost* revealing some extra goodies. The photo was deemed too risque for the yearbook, of course, but the print and the negatives sat in an archive until last month, when a yearbook staffer was cleaning out the office, found the photo and took it home... at which point his roommate, a closet WAMmer, pounced on it, scanned it and posted it to the UMD, thrilled that he could finally contribute something. Within hours it found its way onto dozens of other sites, Yahoo groups and so on. And this morning, you had an email in your inbox from an old college friend, with the subject "Is this you?" It isn't a career-ender, and may not even be embarrassing, but you've been denied the right to control your exposure.
In 2009 most people are savvy enough to know the potential consequences of doing anything in front of a camera, whether they're doing it for money, for kicks, or unknowingly. If they don't know, they learn quickly.
Also, to Fatpizzaman: I'm surprised that no one has taken issue with your use of the word "honorable" when discussing models' education and other qualifications. There is nothing inherently dishonorable about modeling, adult or otherwise. It may be one of those jobs/careers that a certain segment of the public prefers not to acknowledge or endorse, but it needn't be sleazy or disreputable. It's just a shame that people who do that work, whether once or a thousand times, may not be permitted to leave it behind them when they're done with it.