Disclosing information is a thought that Max has had before. But knowing the powers that were at work here. It won't work, no one would believe him even if he had concrete proof about it and showed it to the public.
So what Max said here was just a lie. A lie to make the dwarf think that his son might just eke out a living. He might just survive if words like those were to be exposed.
"Just kill me." But he chose to not say anything. He had chosen to remain adamant against Max's questions. He believed that answering Max would neither change his fate nor that of his child. However, if the truth were to get out, his family would still be implicated, the very family that has put him in this position that he hated so much.
So, even if he hated his patriarch, he still loved his family and didn't wish any harm on them. He can die knowing the fact that there would still be people who would remember him in the end. There would be people that would cry for him.
