The Chocolate War looks at how violence, authority, and speech are used to manipulate the students of Trinity into doing things they don't want to do. Blackmail, extortion, psychological games, physical punishment – these are part of the curriculum at this school. When Jerry tries to cut through the manipulation by making his own choices, other students start to follow his lead. Since this threatens the power structure at Trinity, those in danger of losing their power (Brother Leon and The Vigils) unleash their most devastating tools of manipulation. The novel also looks at how with the right spin, something that everybody thinks sucks, like selling chocolates, can be transformed into the latest craze.
Archie and Emile Janza might seem to have different methods, but there is really very little difference.
Without physical violence, Brother Leon, Emile Janza, and The Vigils wouldn't be able to manipulate anybody.