Right, it's just my opinion that slave owners aren't going to start caring about their slaves because somebody tells them to. Presumably you disagree and think that they will?
		
		
	 
Cornwall is one of those people. He doesn't care about his elves as individuals, he cares about their effectiveness as slaves.
And Cornwall himself mentions using his influence (this is somebody who is if not the than one of the most powerful people in that nation, as evidenced by his ability to litarally take away slaves from somebody he thinks shouldn't hav ethem) to promote MC's training methods. Which just happen to be based around acknowledgement of Lin as a 
person, even if subservient.
Yes, you damn well should expect significant amount of slave owners to change their approach, when the man with enough political capital to have pushed through the rudimentary slave rights elves currently enjoy (though, if going by Ashley's personal story flashbacks, to a very varying degree) will advocate change in approach. Especially since it's all based around the concept of a "better" slave.
	
		
	
	
		
		
			And do I seriously need to explain how pretending to love someone is a bad thing?
		
		
	 
Where the hell did you pull "love" from all of a sudden?
	
		
	
	
		
		
			That when they learn the truth that it will break them?
		
		
	 
The "truth" that most elves are aware of is that they are seen as property. The whole point of what MC and Lin manage to change is that suddenly it dawns on professional slavers that they could get better performance from their slaves if they acknowledge in a small way that those slaves are self-aware individuals.
Which means that the society itself will be faced with the uncomfortable awareness that the justification for the slavery of elves being just "animals" is probably not accurate. Runey already mentioned there are abolitionist sentiments around, even if we have yet to see them in game. Kali going to Uni is a nice opportunity - Lin brings her something immediately needed, runs into some abolitionist students, we get a big ole exposition about how not everybody, especially among younger generations, accepts the "elves are animals" bull - especially since the actor-queen herself is well known as a writer and media celebrity. 
Anyway, the whole bloody point of Lin and MC's impact is that they advocate "humanizing" the slaves. Which is exactly the kind of paradigm shift in societal perception that is necessary for any meaningful improvement of the situation. Not to mention that it's a stepping stone toward elf freedom and acceptance of them as equal to humans simply by reshaping common perception.
	
		
	
	
		
		
			I couldn't think of a more cruel thing to do to the elves if I tried. Your opinion that it is a big push in the right direction is laughable.
		
		
	 
You can express a modicum of care toward somebody without loving them. Just like a "free range" poulrty farmer can still care for his birds until it's time to wring their necks.
Even that little pretended care beats the situation Ms. Ren had to deal with, so yes - even at the bare minimum of utter pretense of care, it's still an improvement for somebody who barely has any rights whatsoever.
It's kind of clear to me now why Runey blocked you, and I think at this point I've written all the responses to you I can be bothered with, as well.