The discussion is often more important than the outcome.
Differing views are aired.
Pros and cons are weighed.
There are aha moments.
Knowledge is shared.
The crux of the matter is revealed.
Things get tweaked.
Awareness is raised.
Concepts are grasped.
People are understood.
The outcome, or decision, or agreement is better for the discussion.
Sure, no discussion gets an outcome too.
Have you discussed that outcome?