It'd be really nice if there was some sort of log that showed your path to the ending you go or something like that, so a player can kinda figure out if one choice will lead them to a different ending or if it's inconsequential.
An interesting idea, albeit the game is a bit too simple for it to work. You get a Neutral, Lover Slut and Slave Slut Ending determined by the Good/Evil bar. Then there are two Secret Endings that have special conditions, so it isn't choice related which makes this idea less applicable.