Akright, gonna see if I can steer this back OT now. I thought it would be fun to pretend to be the person I generally dislike. Haven't you ever met someone IRL who has a worldview that they are "above" movies because they are not as "smart" as books? Only they don't express it in as straightforward way as I just did, they do it by making light of the fact that you are so passionate about movies via making fun of them/you/etc in a subtle way that you can't get accross in an online convo. I encountered them all the time in college and they are not pleasant, as I tried to get across lol. Plz don't ban me. Pretending to be an elitist aside, though...
Okay, except the movie is about sociopathy and examines it with a harsh, realistic, unflinching perspective. The characters in that movie are timeless depictions of sociopaths and the film does a very good job of realistically showing how they go from hooligans or even well-behaving people, to acting out violently. Especially for that time. There are movies that try to cerebrally examine what psychopathy/sociopathy is (We need to Talk About Kevin) that don't get their behavior down as well as Badlands does. The main thing, in addition to angst, is indifference to other life and complete lack of empathy, which Badlands does with spine-chilling accuracy.