It's very beneficial to a writer to hear their work read aloud. It helps them gauge what's good and what needs to be changed. If a reader stumbles over a line then it's, probably, not written properly. It's a wonderful tool in discovering the strengths and weaknesses of a piece.
Also, when industry people are invited it's a great way to get investors, producers, et al interested in your work. You need these kind of people behind you in order to get a piece off the ground.
"All our dreams can come true -- if we have the courage to pursue them." -- Walt Disney
We must have different Gods. My God said "do to others what you would have them do to you". Your God seems to have said "My Way or the Highway".