I agree...as Zappa put it, "The duty of the artist is to amuse himself", if someone else likes it, so much the better...
The connection to the audience comes directly through the music. I've heard so many lame criticisms of Miles Davis, because he didn't talk up the audience, which people invariably refer to as "contempt for the audience"...man, that guy gave EVERYTHING he had in every show he played...I saw him about 7 times, and never failed to be blown away. Actually, he respected his audience too much to subject them to vaccuous live clichés, like "You havin' a good time, Cincenatti?" But people are used to being pandered to by entertainers, and don't get that the music is what counts.