For this one, I’m going to pull the description straight from tvtropes itself, since the whole page is pretty good:
Sometimes, the Forces of Light and Goodness get too hardcore. In a deadly combination of Well-Intentioned Extremist, The Fundamentalist and, generally speaking, not so different, they get blinded by themselves and their ideals, and this extreme becomes tyrannical sociopathy.
Usually, the Knight Templar’s primary step (or objective) to his perceived “utopia” is to get rid of that pesky “free will” thing that is the cause of crime and evil. Many Knight Templar types are utterly merciless in dealing with those whom they consider evil, and are prone to consider all crimes to be equal. The lightest offenses are met with Draconian punishments such as full imprisonment, death, brainwashing, or eternal torture.
It’s important to note that despite being villains/villainous within the context of the story, Knights Templar believe fully that they are on the side of righteousness and draw strength from that, and that their opponents are not. Trying to reason with one isn’t much good either, because many Knight Templar types believe that if you’re not with them, you’re against them. Invoking actual goodness and decency will have no effect, save for making Knights Templar demonize your cause as the work of the Devil. After all, they are certain that their own cause is just and noble, and anyone who stands in the way is a deluded fool at best.
Basically, this is what happens when the villain not only believes that he is the hero of the story, but a heroic hero. It’s not himself he’s fighting for, but his cause–and because the righteousness of his cause is unassailable, anything that stands in the way of achieving it must be destroyed.
The name of the trope comes from the Knights Templar, the medieval military order established during the Crusades to maintain European dominance in the Middle East. They were an elite fighting force that became associated with many of the atrocities of the Crusades. When Saladin conquered the Kingdom of Jerusalem, he was careful to avoid civilian casualties but took no prisoners among the Templars and Hospitaliers.
Of all the story tropes I’ve studied, this one reflects reality more accurately than most. When people believe unquestioningly that they’re right, they tend to stop listening to anyone who disagrees with them. They turn the space around them into an echo chamber, like a one-sided Facebook feed or a narrow message board community. When their beliefs reach a certain degree of fervency, they start to become angry not only with those who disagree, but with those who fail to agree with or support them. Once their cause compels them to action, it doesn’t take long for the ends to justify the means. Give them a little power, and you’ve got yourself a real life Knight Templar.
It’s precisely because this trope so closely reflects reality that it’s one of the better ways to create motivations for the villain. It’s not enough to want to take over the world, you’ve got to have some reason to take it over–and what better reason than a cause you firmly believe in? Assuming, of course, that the cause is believable–it’s still quite easy to botch things in the execution.
This is precisely the sort of thing Gandalf was trying to avoid when he refused to take the ring:
Understand. I would use this ring out of a desire to do good. But through me, it would wield a power too great and terrible to imagine!
Galadriel and Faramir refused the ring for similar reasons. Boromir succumbed to the temptation, but repented for it by giving his life to defend the hobbits against the attack of Saruman’s Uruk-Hai.
In Christopher Nolan’s Batman trilogy, this is also a recurring trope. It’s the main motivation behind Razalgul in Batman Begins, and describes Harvey Dent’s face-heel turn as he transforms from Gotham’s white knight into Two Face. Come to think of it, it seems that the superhero genre in general is teeming with this trope.
There aren’t very many true Knights Templar in my own books, but I’m writing a fantasy series that should feature a few of them. In The Sword Keeper, a brotherhood of sentient swords has passed on the fighting skills of generations of warriors, enabling their bearers to unite the world into a peaceful empire. Then, one by one, the swords go insane, driving their bearers insane with them. It all starts when one of them goes Templar, and ends when all the swords are lost or destroyed … all, that is, except the one whom the hero of prophecy will take up to save the world. And that hero happens to be a backwoods tavern wench who isn’t even strong enough to lift it, much less wield it in battle.
So yeah, even though this isn’t a trope that I’ve played with much, it’s one that really irks me in real life, so that probably means you’ll be seeing it soon my own fiction. If you have any other thoughts or examples to share, please be sure to drop a comment. I’d be very much interested to hear your thoughts on this one.
Image source: Templar Knight in Battle Dress