"Are we truly "better" for being devoted to a piece of art? Was art meant to be praised and obsessed over? Or just appreciated and enjoyed?"
How can anyone answer that? Art is subjective and affects all people in different ways. Yes, art (visual, musical, written, danced, etc.) can affect and impact people intensely, whether it be positive or negative.
If you're a person who is not moved much by art, that's your cross to bear.
I'll answer your "are we truly better" phrase. I'm better for having been in the Hedwig and RHPS "cults" because in them I found communities made up of like minded and feeling people. I won't go any deeper, which I could articulate pretty well, but with you, I see a dead end.
<-----I'M TOTES ROLLING MY EYES