Hitler was rather straight-edge
Adolf Hitler was known throughout Germany for his straight-laced style, including his Bill Blass suits and his sober living. Along with being anti-smoking to an extreme, Hitler was known for being a vegetarian.
In many ways, Hitler was a living definition of straight-edge. He barely drank, barely smoked, and never ate meat. However, his love of hard drugs would have disqualified him from being deemed “straightedge” by most modern groups.