Like I said in my post. All they have to do is do their job right. If they don't, they get shot down, chased around, and whatever else. Also, not all of them have that done to them, they probably did something really bad to get shot. http://i878.photobucket.com/albums/ab344/Holy_Assassin47/15092010228.jpg?t=1285695540 He's gotten himself in trouble, this is his punishment. Is he dead? Nope.
As for The Hole, its not like he forces anyone to fight, they volunteer. It's survival of the fittest. Besides, the ones who are free are then required to go and hunt for food. The Hole is a proving grounds more than anything else. Are exam halls bad? Not really. It's the same thing.
(The pic is taken by me, so don't mind quality please.)
You get paid for doing a job, slaves don't get paid so it's not a job, it's more like a hard labor prison sentence, certainly not a job.
You don't get killed if you don't pass an exam, so that's not really a relevant comparison, and the hole as far I have found is the only route for slaves not to be slaves (other than the revolt), so it's not suprising those abused who can't take it any more would select to risk their lives in order to be 'free'.
The steel yard, why aren't the slavers with all their amo clearing out the trogs and getting the steel themselves? Shall we agree it's easier to just send slaves in, save amo (which isn't a problem to the slaves because of the press), but amo is clearly more valuable to the slavers compared to people.
For me a leader that allows this sort of thing to happen is not good. It's very easy to pay lip service to the lone wanderer and talk about all the positive things he does. I've said in a post previously, Ashur seems to do a speech check before he speaks to the lone wanderer and Ashur is always 100% successful and auto charms players left right and centre!
The 3 lined up and shot at the begining of the Pitt when you first enter were attempting to escape, I don't think that is a justification for execution. The poor chap in the stocks I have found is always killed by the slavers once the revolt starts, he's stuck there, can't run, clearly has nothing to do with the revolt and they kill him anyway.