Minor nitpick: Prostitutes make a lot? I guess depends on which part of the world we are talking about. I hear you can get them in South Asia for as low as $5. Probably lower.
e.g. here it's hundreds per hour for a girl who would barely beat minimum wage otherwise.
$5 in South Asia is mostly mythical, but even where it would be true, that's a large multiple over what they could make otherwise.
Much to everyone's surprise, it's not. People from the region attest to the fact.
> Even where it would be true, that's a large multiple over what they could make otherwise.
Only if you factor in that these women are uneducated, poverty-stricken and job prospects are low.