"I would suggest that your world class teacher just lets you get on with it."
Not likely, given that I hear them making the same points to all of the couples they work with during a visit. And also, given that I am not talking about one teacher, but a category of teacher, and the points that are common (with variation as I explained) to what all of them present.
You do not need to work with a world class teacher every week. However, if you want to learn the state of the art in terms of the truth about how dancing really works, then you do need to consult with the best of the best often enough to have some guidance when deciding which local teachers to work with on a daily or weekly basis on which subjects. Otherwise, you are only getting second rate information, with no higher guidance.