We only use Will and Alignment, 1st needed for intelligent item confrontation, and the 2nd for many reason, but modified from the original.
About alignment, we don't use the horrible rules presented in some books, based on deprecated and false conjectures (presented in a not very good MERP book really). In books it is based only in spell failure...what!?, it uses the idea Saruman was changed to evil because the use of magic, and that is totally untrue, the reason was the connection with Sauron (specialist in fool others) by the palantir, so the reason was influence not magic.
We use a 100 based scale with corruption points for alignment, so are your actions and not your pencil what decides your real alignment. You can start with the points you want (based on your background too), but with your actions you can add or substract points.
1-25: good; 26-75 neutral (the more typical); 76-100: evil.
Alignment can be used for many purposes, item will confrontation (if item is other alignment than yours), lose power if enter in a certain shrine (depends on god alignment and yours), detections, etc.