Yohannan said Moss once commented to photographer David Bailey that she had "been blamed for everything from smoking to anorexia to heroin."
"Kate was a reflection of the trend, though hardly the author of it," Yohannan said.
Nonetheless, Moss' "anti-model" look established her as fashion's newest muse. By her agent's own count, she has appeared on the cover of Vogue 27 times, the most of any model, and has done campaigns for nearly every major designer from Chanel to Yves Saint-Laurent.
Even when Moss' real life began to mirror her fashion industry image, her career hardly suffered. In September 2005, a British tabloid published photos of what appeared to be Moss snorting cocaine. Burberry, Chanel and H&M dropped her from scheduled campaigns and Moss was forced to issue an apology, though she did not admit to using drugs.
"I take full responsibility for my actions. I also accept that there are various personal issues that I need to address and have started taking the difficult, yet necessary, steps to resolve them," she said in a statement. "I want to apologize to all of the people I have let down because of my behavior, which has reflected badly on my family, friends, co-workers, business associates and others."
A year later, according to Forbes.com, she had earned more money than before the cocaine scandal -- $8 million in 2005-06, compared to $5 million in 2004-05. In 2008, Forbes said, only two models -- Gisele Bundchen and Heidi Klum -- had earned more than Moss.
In May, Moss will become the first model to host the Metropolitan Museum of Art's annual gala, where the fashion, Hollywood and music elite bond over fashion.
Next month, her TopShop store, with clothes ranging in price from about $25 to $200, finally arrives on this side of the pond with its April 2 opening in downtown New York.
At an age when most models are out of the picture, Moss is poised to become a symbol of both fashion and style.
"Insiders have known for years that Kate Moss has a personal sense of style that becomes fashion news," Yohannan said. "Her success lies in a rare and unaffected instinct to mix haute couture with jumble sale finds, high fashion with high street, and as such she embodies the perfect mix of high-low that resonates so thoroughly today."