This is one of the few times where Manga upscales atrocities compared to the Novels.
Novels basically has "He was an illegal magician / alchemist , made illegal & addictive medicine /drugs (drugs because it became illegal) , made it popular enough by claiming it as a panacea when it's just a painkiller which caused the death of the lord's weak wife and others by making them overexert themselves thinking they were healed, become a widespread problem and when the lord tried to stop it he was killed"
None of this kidnapping, rape, enslavement unless I misread that entire chapter or google really had some problem with that raws.