How is Elie Wiesel's moral struggle an important element of Night?

One of Wiesel's moral struggles is directly tied to the theme of human nature and dignity. Though Wiesel trusts his father, he at times does not appear to trust himself, and he often condemns himself for thinking his life in the concentration camp would be easier if he were alone and unburdened by his father. However, after witnessing instances of family betrayal in the concentration camp, Wiesel begs to God that he will never betray his father. Though Wiesel is true to his world, loyalty for others in the concentration camp breaks down as resources become scarcer and survival instincts replace loyal ties. Eliezer does not blame the prisoners for severing ties of loyalty: instead, he blames the Nazis for giving them no other choice.