My skin is mostly blemish free aside from a few moles, some scars from old piercings, and the occasional spot of hyperpigmentation from old wounds.

Why would you think otherwise?

I use my own homemade true soap (I'm convinced modern detergents are much harsher than they need to be and that a superfat of olive and jojoba oil is good for my skin) if a simple wash with water and a towel won't clean me off.

Skin will only get angry if you strip away protective oils or clog up the pores with who knows what. I don't scent my soap either, perhaps that makes a difference?

huh it's not an argument it's just my opinion. Dogs mouths are super dirty, saliva is a bit gross. If you are used to just getting dirty and clean all the time another way of getting dirty doesn't seem that bothersome.

Like most people are grossed out by being vomited on, after you care for babies for a while or work security at a messy bar or whatever you stop being that grossed out because it happens hundreds of times. Work at a vet or on an animal farm and piss and shit getting on you stops being so nasty.

It's not a moral judgement, just that if a pet licking you seems really gross you probably aren't used to getting stuff on your face that you just go wipe/wash off.

Also yeah, pain seems worse because we're not used to experiencing it, although pain is a bit special because our brains make us forget what it feels like so it's always novel. You know how some people can just get hurt a lot and deal with it? they're not superhuman, they just live lives with much more pain in them.