The original question had to be edited.  I invite you to resubmit the questions featured separately.  I think that there are specific instances in which Stern is shown to push Schindler into the position of rescue.  His role is the angelic force behind Goeth's demonic pull on Schindler. In Stern, one finds the redemption from Goeth's condemnation.

Stern is constantly speaking to Schindler in terms of money and wealth.  Stern understands that if he can continue to develop profitability for Schindler, there is a greater chance that Schindler's factory can be used as a place for Jewish people to go in avoiding death at the hands of the Nazis.  When Schindler questions Stern, he is able to ask the businessman, "Are you losing money?"  In this light, Stern is able to establish clearly that a basis for rescuing people is evident.

In a way, Schindler is able to massaged into allowing his transformation to rescuer.  Schindler speaks out at one point about how "dangerous" this is, but he succumbs to it in giving Stern a watch or a cigarette case in order to deliver more people to the factory.  Over time, Stern does not have to construct the change for Schindler.  The liquidation of the ghetto does this for him.  Yet, when Schindler comes up with making the list, it is Stern who recognizes the opportunity and does his best to match Schindler's pace.  Stern understands the opportunity that is in front of both of them and he does not do anything that would slow this initiative.  Stern operates as Schindler's conscious for redemption and hope.  Schindler understands this, almost allowing it to happen, and moving farther from the path of Goeth.  At the end, Stern is able to see Schindler as embracing his role as rescuer, confirmed in the ending of the film when Schindler breaks down to Stern in saying that he "could have gotten more out."  It is here in which Stern recognizes that his work with Schindler has represented an "absolute good," allaying his boss to "look at what you have done" in saving as many people as he did.