IT work is transient and alienating too, but people do it because it pays the bills for their skills
The stigma from sex work being in a legal grey zone affects those who rely on the income to support themselves and their family.
Also I would be interested to know what other professions you consider "luxury service work" since I can't seem to find a proper definition readily.
By luxury service work, I mean something where you perform services for people with much higher than average disposable income. Basically think of all the bottom rung jobs in the most expensive parts of the most expensive cities.
We can fool ourselves and attribute actors and athletes success to hard-work. It has a bit of truth to it, but a beautiful woman getting thousands a month just for being hot and talking into a camera might be too blatantly unfair for us to ever view it without some stigma.