A "birdie" told me that the contracted electrician (company) gets $500 flat fee
for a "standard" install, meant to average out (for the contracted electrician
company) over the more expensive and the less expensive "standard" installs.
Apparently AV takes the rest.
Still, not quite fair for the customer, but simple and easy for many.
If you have an "easy" job, be sure and request a "custom" job and bid,
where the bid can be LOWER than the "standard" bid.