KY
Imagine a priceless family heirloom, say a pictue of a Great granfather or something. Obviosuly it has zero market value. Nobody would pay a cent for a picture of some old guy .
Are you really suggesting it is a bigger averia for me to steal 10 bucks from the guy than to destroy the picture?
BTW
“And if society would not view it that way, it would not create such emotional pain and it would no longer be so terrible.” this is true for most bein adom lechaveiro aveiros. hitting is only an aveira if done “derech nitzayon” acording to the Rambam, if I let then most hold it is allowed. Stealing obviosuly isnt stealing If I let. but even if you can (strongly) assume that I would let, like having you do a mitzvah with my stuff, or something nobody is makpid on, you can “steal.” I dont remember the rayah but I heard from Rabbi Reisman that if I let you tell Lashon harah about me you can
Murder is an exception, even if a person asks to be killed, because is suffering their is an issur to kill him. ( I forgot where I saw this as explanation why the torah had to assur killing if we would know it on our own)