Is slavery in and of itself so called morally neutral?
Is it inherently neither right or wrong?
No.Is it good that people be free to murder or steal?
Just a long way around of saying slavery can be good or bad depending on what you do with it .
But what is it until you do something with it? It is neutral ground.
What gave you this "most" circumstances impression and it's bad by default ideology?
Also something that is bad in nature, how can it produce any good?
How can something incapable of producing good produce good?
People can be guilty even looked at as innocent so quantities, moot.