in my experience, almost the entire audience will only judge if things sound "good" or "bad" and that's it. they typically don't discern that the bass guitar is too loud, or the singer is too quiet, or that there's too much distortion on the guitar. they just say "that sounds bad."
if you want to spend the time needed to impress the handful of musicians that may or may not be in the room, that's for you to decide if it's worth it. but most people respond to the energy and overall feel of the performance, judging if it's appropriate for the current venue/gig.
if you have a guy kicking and jumping all over the place the entire gig... in a restaurant gig, then it doesn't work, even if he sounds good. if you have a guy sitting on a chair and emoting love songs the entire gig... at a rock show, then it doesn't work, even if he sounds good.
so you can sound objectively great, but not performing correctly for the moment. compare this to a band that may not sound the best objectively, but their performance matches the energy expected at the gig. people will love that. the few musicians will be judgey judgers, but does that really matter?