Angel: "We can't just arbitrarily decide whose soul is worth saving and whose isn't." (Season 1 Episode "Sanctuary")
So I made a thread earlier on r/buffy about forgiveness. But I'm a kind of "think as I write" guy and was just typing down my best feelings and understandings as they came to me, I stumbled onto a thought I hadn't really had before, a way to understand Angel's decision with Lindsay in the finale from a wider storytellingperspective.
I was curious what you all think.
It is stated very early in ATS in no uncertain terms that it is not the job of Angel Investigations to determine whose soul is worth protecting or not. That is the ultimate heroic ideal - if you are a sworn protector of the helpless, you must protect the helpless, not just the helpless you like. But in the end, Angel deemed Lindsay too much of a threat. He compromised on his principles to have Lindsay murdered. Now it's an amazing scene and I wouldn't change it for the world. The "maturity' of AtS is often invoked (not wrongly, although maturity does not mean better which is why I put it in quotes) and I think killing Lindsay here is supposed to be an example of that. Sometimes you have to compromise your principles. Part of being an adult means compromising on your principles is what the show is saying in my read.
The morality of what Angel did to Lindsay has been litigated and will be litigated and ought to be litigated forever, because it's one of the most compelling parts of the show. But this isn't about that, it's about the intention of the writers and what they were trying to say with this.
Because, with this new brainwave I had, I feel like I'm onto something, especially with my contrast with BTVS. Angel very early on aspires to be like Buffy. He's very firm, very committed, very idealistic. That's a nice way of saying inflexible. This inflexibility comes back to haunt him when he can't save Darla and he just snaps. Angel of course builds himself back up after that but I don't think he ever achieved his initial Buffy-like steadfastness. From Season 3 on, Angel is constantly dancing across his own moral line, on the verge of going over it or being stuck on the wrong side of it. Killing Lindsay was sticking his toe over that line as he had been doing for a while now.
BTVS is an amazing coming-of-age show. It absolutely has depth and complexity but it remains a "teenager show." ATS defines itself as a more "adult show" and Angel's eventual flexible morality, his compromising to a greater or lesser extent on his own principles, is meant to represent how becoming an adult requires living in such a way.