Typically applied to female rather than male prostitutes, it reinforces the archaic notion that women don't know what's good for them and are incapable not only of making their own decisions, but also of taking responsibility for those decisions. All prostitutes are survivors of childhood sexual abuse. Even for those who are, that doesn't mean that they are incapable of making decisions for themselves. Prostitutes need to be saved from themselves. If you want to patronize prostitutes, visit one with your wallet in hand.
Many prostitutes are drug addicts.
So are many accountants. All prostitutes suffer from low self-esteem. Being rewarded for being physically attractive or sexually competent is not an obvious barrier to self-esteem. Prostitution is always a degrading act. There is nothing degrading about earning an honest living the best way you know how.