Yes. While there's nothing wrong with sex work, if you're forced into it to survive when you'd rather not (marriage or cohabitation because it's either that or sex someone to get a low or higher paying job) it's still forced prostitution, and once Mr. Nice Guy has you, it's mask off, 100. Even if you willingly choose Mr. Nice Guy, and the mask comes off, it's a bait and switch, rather than duress and still scummy.
To put it another way, if your choices are die from dehydration or drink poisoned water, dehydration may be less agonizing than drinking from a brackish source.