Prostitution isn’t just immoral, but it decreases the likelihood for marriage of long term commitment. For example, a single man, in his mid 20s making an above decent salary will not be in a rush to get married since his money can get him the gf experience in one night.
Lobbyists and those alike know that prostitution lowers the value of vag and commitment. A woman can spent 3/5yrs mentally and emotionally training her man to do things for her in exchange for dead fish sex, but when she finds out hes is cheating, she will be mainly angry at the other woman for rewarding him for free and overriding the manipulation.