The struggle between light and darkness is a defining feature of Pyrathia and permeates most aspects of SK. There is a huge (huge) difference between temporarily teaming up when it's necessary for the best interest of everyone and the things that get people cursed, which basically include ignoring the above struggle. Perhaps it would be better to be specific about violations so that it's more clear where the line is drawn, but it's not nearly as disparate as your conclusion seems to indicate. (Thanks, OA, for clarifying while I was typing.)
To clarify:
Scrupulous characters should never, ever level against lighties. Not only is it highly doubtful that it could reasonably be explained away as "for the greater good," it nets them negligible experience. However, these characters do differ greatly from grays as they seek protection for others outside of themselves and strive for virtue over vice. They are most definitely "good" guys, but they're more interested in the ends than the means.
You must have pulled that principled helpfile from the webpage because the one in-game has been updated. (The one for scrupulous is also pending a revision.)
Quote:
Principled characters value life and freedom above all else. They will strive
to protect all people, especially those who are not able to protect themselves.
When possible they will try to stop those who commit evil acts by capturing and
making them pay their debt to society.
Principled characters try with all their might to follow and uphold the laws
of the lands. Most laws were created to help the helpless and were likely
placed there by those of a principled or dogmatic mindset. Laws that promote
evil will not be upheld by a principled character, but a principled character
will also not willingly reside in such an environment.
Principled characters try to avoid killing, but do not necessarily shy away
from lethal force in the face of unrepentent evil.
Liberty includes being free from oppression, which is a manifest consequence for allowing those who would oppress others to continue on unfettered. Again, there's
supposed to be good and evil, clearly delineated and working against each other in the game.
(check out help roleplay in-game as opposed to on the site, too. We need to do some updating here.). Further, leveling as a lightie can be done almost exclusively against beasts, demons and undead, so if you wanted to play one that took the extreme of life and liberty applying to everyone, you could.
There is no such thing as "reform" in SK. Alignment is a permanent attribute of your character, and this is an IC realism as much as an OOC one, though I will be certain to make it much more clear in the edit to help alignment because that is something that's actually missing.