We have a huge advantage over scripted theatre, because everything we do happens for the first time, for them, with their suggestions. Our audiences are much more invested in our work.
It's not often that we think that improvisers have an advantage over actors in a scripted work. What we do tends to be seen as much more dangerous.
It is therefore very soothing to think about this advantage that we do have. We are getting more credit from our audiences!