We see this same idea of sensitivity when Moshe Rabbeinu was supposed to speak to Selah to get water, and instead he hit it. If an inanimate object deserved to be treated with respect, how much more so are we mechuyavim to treat live creations of Hashem with respect and dignity. “
I was actually confusing to things when I posted this, though I think it also ho0lds true here. The thing I meant to quote was that Moshe R’ was not allowed to hit the NILE river with his staff (Aharon did it), in initiating makkas dam, because of hakoras hatov to the Nile for hiding and protecting baby Moshe. If we need to be sensitive to the feelings of a non-living object like water, how much more so must we care about the feelings of people! So if Kimchis was concerned with the “feelings” of tznius that a wall might have, how much more so msut we be sensitive to be tznuim with people.