If they aren't situational, how do you move them into the future or situations beyond what is shown? Not asked in sarcasm, but seriously of you as an author. Within the five seasons I would think the rules are more clear. But beyond that, at some point you must have to project growth or change and not have them simply repeating their actions because they had handled something that way at one time?
Everything is meaningful, but we may interpret it in vastly different ways. Brian and Justin aren't real people? Damn...