am181d
Adventurer
I going to quibble and say that personality and alignment have only a very tenuous connection.
I can easily imagine a neutral good sarcastic, greedy, miserly, jerk. I can easily imagine a generous, sociable, friendly neutral evil person. Good people can be cowardly. Evil people can be brave.
Alignment for me is really something that is rarely expressed in a person. It's not something about a person you immediately notice and rarely have proof of. It's a deep underlying motivation. It's what a person does when the chips are down, when he's under stress, and what a person does about it.
To me, it sounds like you're still talking about the character's personality. You're just saying some aspects of the personality aren't expressed unless "the chips are down." But for a D&D character, when are the chips up?
Again, I'm going to quibble around this and say that the real purpose here is to provide a very simple framework around the exploration of otherwise very complex topics in a way that is useful to heroic narratives. I'm not happy with the word 'cudgel', but do think that players need to accept that for the purposes of the game, 'good' and 'evil' and so forth have specific definitions.
I think they have definitions. I don't think those definitions are particularly specific. (Nor should they be.) If a player says "I thought it was a lawful act because of X/Y/Z," I'd be inclined to nod my head and move on.