First of all, it makes the dance technically better. When we dance couple dances there is always leading and following. The leader sends a signal and the follower has to interpret that signal.

This is an excerpt from my book about musicality - "The Secrets of Musicality for Dancers - Learning Nine Essential Skills for Musicality in Dance" Just click the link. 

With better technique, the leader will send a clearer signal so there will be less guessing and back-leading. And the timing of the leading will be better. The follower will be better at listening to and reacting to the signal. The interpretation will also be better. And the execution of steps or moves from the follower will be better, with better timing.

The leader then needs to listen to the feedback from the follower. Is the interpretation of the leading correct? Or was there some misunderstanding?

If the follower had good technique, there will be less problems that need to be adapted to. It might be...