Without being too flippant I think this is one of those "how long is a piece of string" questions, or maybe even "there are as many answers as there are WGs".
Some WGs have successful civvy lives and do sex work temporarily, to meet a short term financial goal, and thereafter go on wth their lives unscathed. Some WGs, you couldn't imagine them finding any niche in life aside from sex work, sad to say, due to substance addiction, coercion, mental health issues etc. And then there is an entire spectrum that exists inbetween.
I'm not naive to the less salubrious side of sex work* - but unless you're concerned there are clear signs of trafficking or servitude, what use is dwelling on it? I've been with WGs who have self harm scars, I've been with WGs who readily admit to having (or are just crap at concealing) drink and drug habits, I've been with WGs who have verbal and facial tics and other signs of being "not quite right" upstairs. It's sad, and I hope whether they stay in the game or not, their lives turn out for the best. Very little I can so as an individual aside from treat them courteously and decently, and report any suspected human trafficking.
Lastly, I now have the Peter Sarstedt song stuck in my head on repeat, thanks for that.
*(and we could argue, how many of us would turn up to our day job if not for the money, but I think sex work is a different category of risk)