Most people begin a profession because they believe they have personal skills suited to the job. They also will begin a profession owing to the fact that they believe they will derive some sense of enjoyment and accomplishment from the tasks that the job includes. But every now and again, someone will begin a profession with other motives at work.
For example, someone might become an escort London offers not because she enjoys escorting, not because she thinks she would be good at it, but because she would be having experiences which she could use later. She could use them when writing memoirs later in life, as most people cannot read enough about such things. If her memoirs were to be about boring, day to day business, then it is a fair assumption to make that fewer people would read them. Being a London escort is a profession that many would sneer at, but who would absolutely love to read about, and the more details the better.
But should one of these people join the ranks of the escorts in London, with an ulterior motive in mind, they might not be as bothered about the actual job they are doing, and perhaps begin to give fellow escorts a bad name. There is also the danger that if some scandalous memoirs about being one of the cheap escorts London offers are released, and they include intimate details that have been hugely exaggerated for the purpose of rhetoric, that the general opinion of London escorts would plummet, everyone believing that whatever material is included in those memoirs is entirely true and applicable to every single escort in the world.
This can happen to almost any profession that does not constitute a typical nine to five. Ambulance drivers, astronauts, the list goes on. If the experience of the person writing memoirs is to be documented, it should enlighten the masses about the inner workings of these professions, but sometimes that does not sell. Even fiction pieces about these professions should give some insight into the job and how it affects the worker, like the Joe Connelly novel Bringing Out The Dead (which was later turned into a film featuring Nicholas Cage). Connelly was an ambulance driver, and this novel documents some of the deepest aspects of the job without being some scandalous piece designed solely for mass sales.