The women working in the special industry often have a mantra: when they can't do it anymore, when they've saved enough money, they will go back to their hometown to find an honest man to marry. Once they settle down, they would no longer engage in their previous tricks and live an honest life with an honest man.
It sounds like there's a sense of a prodigal son turning over a new leaf, priceless as pure gold. The problem is that most honest men have no clue about these women's past. Nobody cares if a prodigal son repents, but why should an honest man be treated as a fool, kept in the dark? Did the honest men desecrate these people's ancestors' graves or something? Why should they be treated this way?!