How is Susan Glaspell questioning the traditional definitions of marriage and women’s roles in society?

The men of the story possess all the official power and authority. They are the embodiments of the law and impose their worldview. They are loud, active, assertive, and prone to demonstrating their superior position. They denigrate the female, private sphere and make conclusions based on their position of power rather than the reality of the situation. The women, by contrast, are interested more in community and empathy. They know their inferior place and, while they do not outwardly rebel (except Minnie!), they chafe. They know that the small things carry great meaning, and they exhibit compassion, care, and thoughtfulness.