I think that since Walton serves as part of the frame structure of this novel, his behavior that straddles the two main characters helps to foreshadow the conflict that both main characters will be forced to endure throughout the novel. Furthermore, Walton is affected by the two of the characters at the end, and so, on the one hand, it is even easier to see how he emulates both characters at the end...because he has come into contact with both. However, his aggression or arrogance has diminished as we are left with a moral by the demise, as it were, of both main characters. Walton now knows better than to follow Victor's path.

Dave Becker