Artists don't want to go to meetings, they'd rather lead. With only the evaluation of opportunity cost.
There's this big meeting, plenty of talkers. Talk, talk, and talk.
Then the artist comes in, whipping out his giant portfolio.
CRUNCH!!
Just like that, the table is demolished, the work speaks for itself. Those 3 minutes are the most important minutes of the meeting's timespan. The veins of the others are about to explode.
Beyond the minimum, beyond what petty luxury is, beyond the call of duty.
He walks out, he's said enough.