You don't want to spend the Soliloquy wondering if the actor is going to get through it. Raitt seems to not be even breaking a sweat, and as a result he just soars with it. Even having seen that clip a hundred times, I just relax watching it, knowing he's going to deliver. I've seen and heard many other excellent performances of the song, but I always go back to Raitt as the gold standard.
Begin at the beginning and go on till you come to the end: then stop.