if i understand you correctly (and there is a good chance i am not), you are saying exactly the same concerns apply to prostitution as other wage slavery. is this correct? if it is, what is the way out? revolutionary re-ordering of the [power] structure? would that work for prostitution also? or, are you saying that prostitution, by its very nature, is exploitative (and requires something similar to the current structures, in order to exist), and any re-ordering of structure would wipe out the supply side, since no "empowered" (yes, i know you hate that word ;-)) human is going to voluntarily take up prostitution?
my apologies in advance, since these elementary issues were probably addressed earlier in the debate, which i admit i was lax in following!
--ravi