Add an example
I'd argue, that Yes, there are non-wicked slavers.
While the specifics of this situation may or not be wicked, A good portion of the United States owned slaves before our own civil war. We had a very large industry of people who bought slaves (mostly Prisoners of war, originally), from Africa, and worked in a multimillion dollar instuestry (at the time, that was huge), to bring them to, and sell them in, the United States.
Even after importation was banned, there were a Lot of people who bought and sold Slaves legally, and had no moral qualms about it. They went to church on Sunday, they worked to help the community.. And oh-yeah.. They had slaves.
It's not a moral issue for them. It's just the way things are.
Even those people who /capture/ slaves aren't necessarily evil by any means. Keep in mind, capturing slaves is Legal, and morally accepted in their country.
In their minds, it's an extension of Vigenantee-ism. Escape slaves are trying to get away, which is Evil of THEM! (at least as far as the slavers are concerned) (Theft of property)
Look, I'm not saying that I agree with that principal, but you can't just apply our own morals to the situation, and decree that they're all inherently evil. It doesn't work that way.
That said, I doubt that you would argue that all of the people living in a house/farm with Slavers are necessarily evil.
As a made-up example, Jacob works as a handyman for the Slaver's farm. He's got a mother back in the city, and he needs some money. Sure, he doesn't approve of what they're doing, but it's legal, most people in Voushta own slaves, and he doesn't think about it too much.
He's just there to fix the wagons when they break.
Could Jacob be a better person, if he were to stand up, and leave the job because they're capturing slaves? Sure. But he needs a job, and what they're doing isn't hurting him.
Is he a bad person? Debatable. Is he so wicked he deserves to die? Most certainly not.
But Enworld has had a lot of ethics threads already. We don't necessarily need another one
Colin "Sliding Scale" Davis