I re-watched parts of 'Buried' today for the third time (I was bored and I have to watch something when I'm eating) and the scene when Lydia and Todd's crew obliterate Declan's gang got me thinking. Todd ushered Lydia out of the bunker and gently led her away after he urged her to close her eyes. He has, however, no conscience for what he's done. Even in the other scenes where Todd has acted callously, he always maintains a gentile demeanour.
On the other hand you have Jesse, who is the polar opposite of Todd. He comes across as being rude but his conscience eats away at home over the crimes he has committed. He couldn't be more different from Todd and that showdown between the two after Todd shot the kid in the desert was a clue from the directors, I think, as to where this may be headed.
Walt, of course, is stuck in the middle, but he's able to contain Todd whereas Jesse always proves more problematic. Depending on what outcome Walt wants, he's going to have to choose sides at some point.