I understand the premise of your question. But I disagree with its point. Poly is simply being able to love more than one. The relationship constructs around that are up to the individual.
Polyamory has to stand on its own as a collective of lots of different types of relationships. If you want public acceptance you need more people agreeing, not a splitting of hairs that may see polyamorists left out of "poly" because you don't agree with them.
Pimps.. really?.. jeez..