Horobin's article indicates that Bokenham's work presents a life that all young men and women were to aspire unto in regards to morality. However, it would seem that one aspect of this kind of prompting is gender specific within the Saints lives: sexual agency.
As seen in the Saints lives the women are depicted, the majority of them, as beautiful women that are constantly battling against the oncoming sexual advances of kings, merchants, and sons of officials. This represents a common theme within the sexual agency that a women in medieval stories were inferred to have in accordance to cultural normative acceptance.
This type of discrimination would project, as seen in Margaret, Dorthy, Anne, and Agatha these women have to struggle not from within a sexual desire, but from without. These stories are displaying a type casting of women needing protection from the sexuality of others because they do not have the agency to safeguard their own sexuality. The extent of the torture that these Saints encounter emphasizes this point by the torture itself being a sexual attack based upon taking away the feminine physical attributes, thus alleviating the women of sexuality at all.
The men within the stories, however, are portrayed in two lights: one they are paganistic and do not attempt to suppress the sexual drives, two: having to advert companionship with women because they are a temptation that draws them away from God's plan. This places the blame of all sexual indiscretions on women (or the paganistic belief system that is constantly feminized in literature) alone whom, as discussed above hold no agency.
So what are we to make concerning Horobin's claim of these stories being for the edification or example of moralistic lifestyle of both Men and Women? I would tend towards these stories being a picture of an archaic belief of a woman's role within sexuality. That is to say that it projects the blame upon women for not having or holding an agency that is not allowed to them in the first place.