I think this is a good analysis. I often make choices based on what NPC I'm wooing rather than any consistent sort of personality of my character. Heck my party composition is based on who will like my natural choices and who won't. I mean I generally side with good and empathy, but sometimes someone just rubs me wrong or I take the unique bard/wizard/etc option just because I won't get that option on another playthrough. For example just today I encountered someone and the bard choice was different based on whether I succeeded or failed an insight check and I wound up in combat on the wrong side. So I scum loaded, but maybe that would be an interesting storyline had I followed that path.

Some of the choices seem meaningful, though, should I ever manage to bring myself to do an evil playthrough.