I don't really understand what you need help with, but if it's not knowing what redeeming quality is then- besides being "bad" or having bad qualities. They're good qualities that come with. Such as the character described below even though she has an evil heart she's still a loving mother.
It suggest just how poor and in poverty Walter was based on how he was acting at the table because he probably does not eat much, since he is not financially stable.
