I totally see them being linked and as one of the reasons why there's a general failing of trust on expertise. Here's a clearer analogy; would you sign up with an obese personal trainer? I mean you might say that you personally would but the point stands that most people won't.

It's not like I'm asking the philosopher's to cut a toe off to prove their mettle. This is such a simple lifestyle choice that millions of people take for ethical moral reasons anyway.

Arguing that they're in a different branch of philosophy also sounds disengenous. I can try and give analogies for that we well but something tells there'll be mor nitpicking.