to be able to say "Lactation Consultants are the best in the sack." (Because I am one.) But, to be honest, I don't think occupation matters
I know a few LCs who are not into sex at all, and are fairly inhibited, and some who are horny as hell, same with nurses (I'm both a nurse and an LC, as well as a post partum doula.) I don't think what I do for a living has much to do with my sex life.
My husband is an Engineer. He's fantastic in the sack! Is it because he's an Engineer? No. He has colleagues who still live with their mothers at the age of 55, and in his words, "Have never been laid in their lives and don't seem to miss it." He also has colleagues who feel the same way about sex as he does. It doesn't matter what you do for a living, I think.
Years ago, I knew a girl who was an escort who claimed she hated sex.
Her profession (the "world's oldest") didn't seem to play out the way most people would think it would, did it?
I think a person's personal openness with their lover, as well as their willingness to be uninhibited and tolerant have MUCH more to do with their prowess in the sack.