I would point out that the idea that medicine is divorced from culture isn't true. Should everything be evidence-based? We could make an argument for it. But it's not how our system works presently. I saw that article was written by a pediatrician. Ob/gyns and pediatricians are more than happy to perform a circumcision even if the impetus for it is non-medical. They'll take the money.
I don't know if you've ever seen Madonna live on stage. She's an entertainer. I'm not calling her a dancer. I'm not calling her a singer. I'm calling her an entertainer, and she is one of the world's best. She takes B-vitamin injections right into the buttocks before she goes on stage. It's part of her ritual. Now do we need medical evidence to support this practice by her personal doctor? It's part of Madonna's ritual.
Maybe in a different world we need evidence. But it's not the world we live in. I'm not too familiar with your garden variety patient seeking out B-vitamin injections, but I would imagine there is some therapeutic alliance, some "theatre" if you will, to dropping your trousers and having your doctor stick with you an injection of B-vitamins. If we lived in an evidence-based world, would we even have entire fields like cosmetic surgery (and I'm not talking about reconstructive surgery)?
Culture and medicine are inextricably linked. You've got the AAP (the organization the doctor who wrote that article likely belongs to) lobbying to perform pin-prick female circumcisions! That is only about culture, or is there some evidence for the benefit of that as well?
I am not ashamed of being a dance therapist. At least with the dance I'm not some piquerist—now that really is only about culture and absolutely no medical benefit.