Yes! A reference to Foucault! Ahh, I am at home..
I think the tone in these answers say even more than the words. Obviously the intent when going to SPs isn't to harm an SO, and the SPs themselves seem really understanding about married clients. I agree that, from the SPs I know, visiting a lady (or ladies) can really help a marriage that is suffering purely because of a disconnect in sexuality. With that pressure taken off, who knows what can happen!
If only this didn't have to be secret, eh? Ah, one day.