My physical therapist charges my insurance twice what my therapist does for the same hour of therapy. They both have comparable amounts of postgraduate education and training. They both improve my health to comparable degrees (neither one cures me, they both allow me to function better with whatever illness I have, I'll never be completely free of either of them).

Yes, one is more emotional labor and the other is more physical labor but as a culture we undervalue one of those. Hint: it's the one provided mainly by females, that we think should be provided for free in child rearing, caring for elderly and ailing relatives, and so forth.

I'm not saying it's exist to question the cost of therapy; clearly it isn't! The whole medical system is overpriced to the point of ridiculousness. But even inside that asinine system, gender bias persists and it has to do with the type of labor we value more.