Hi Shaun!
The main other point I would add to the list would be the role sound can have as a unifying and narrative consolidating force when looking at the full picture of an entire film from start to end. Establishing aesthetic sound elements or compositions and working them to change and evolve/resolve in accordance with the arc of the general story or character’s journeys,etc… Basically approaching this aspect of the sound in a similar way to how you would think of and approach a film score. Not sure if I’ve managed to describe clearly what I’ve got in my mind here :p

I included the list below in my article “Designing A Movie For Sound.”

suggest a mood, evoke a feeling

set a pace

indicate a geographical locale

indicate a historical period

clarify the plot

define a character

connect otherwise unconnected ideas, characters, places, images, or moments

heighten realism or diminish it

heighten ambiguity or diminish it
draw attention to a detail, or away from it

indicate changes in time

smooth otherwise abrupt changes between shots or scenes

emphasize a transition for dramatic effect

describe an acoustic space

startle or soothe

exaggerate action or mediate it