Of all of the characters in Star Wars, none are as well devolved and brilliantly written as Old Republic Jedi Master Kreia who left the Jedi Order and eventually became Sith Lord Darth Traya the Betrayer…only later to reclaim her original name as she realized that both the Sith and Jedi code are fundamentally flawed which lead to a cycle of never ending death and war. So she sought to not just eliminate them both, but to destroy the “Will of the Force” itself.
In her own way Kreia saved the galaxy. She knew that the Jedi code was flawed, too ideological, and that eventually the Sith would destroy them…which of course they did. Fast-forward to today – now the new and few Jedi, such as Luke, Ahsoka and Ezra, understanding the lessons of history, see the Jedi code as more of a guideline and not a mandate or an ideology.
The Sith of course fell, as they eat their own and like socialism they consume the civilization they are in as they consume each other – always leaving a human catastrophe in its wake.
As Kreia says, which is also something the great Roman Senator and philosopher Cicero believed, is that to believe in an idea is to understand when it is morally correct to abandon it or betray it. Ironically, while Kreia could do this with her Jedi self and her Sith self, she did could not understand this when it came to the philosophy she grew into.
While we admire Kreia’s individualism, even rugged individualists tend to believe in something bigger than themselves. They have a certain faith backed up by a strong ethic…and that is what Kreia lacked. She put herself in the role of God of the Universe and that always fails.