Why does The Goober pull back and not help Jerry during his ordeal with The Vigils?

Does Archie have an intention of making Janza a member of The Vigils?

Why does Obie silently acquiesce to Archie's demands even though he knows they are wrong? Why does he suddenly decide to try and dethrone Archie at the end of the book?

Why don't any of the other teachers at school insist on punishing Archie for Room nineteen or the boxing match?

What is the significance of the fact that the high school in the book is an all- boys school? What does the lack of female characters suggest?