Honestly, when I think about Lucius Malfoy I picture someone who slid into the Death Eaters the way an aristocrat slips into a velvet cloak—almost by habit. He came from a lineage that prized pure-blood status and social dominance, and that background made Voldemort’s message of supremacy sound less like a threat and more like validation. Wealth and connections let him act on those beliefs, supplying dark objects, influence at the Ministry, and a network of like-minded elites.
He didn’t join because of some single dramatic conversion scene in the hallway; it reads to me like a series of choices cemented over time. There’s ambition—this idea that supporting Voldemort would secure power and reboot a social order that favored families like his. There’s also social pressure and a cluster of peers who normalized violence and prejudice. After Voldemort fell the first time, Lucius paid the price with imprisonment, but he came back into the game and made choices (like slipping the diary into Ginny’s school things) that showed he still believed in the cause, or at least in the usefulness of Voldemort’s resurgence for restoring his status.
I always find it chilling how mundane his descent feels: not dramatic brainwashing, but entitlement, fear of losing rank, and a willingness to sacrifice others to keep his place. It’s the human, boringly relatable side of evil that sticks with me more than any flashy scene in 'Harry Potter'.