Final answer:
In 'Riders of the Purple Sage,' traditional gender roles are depicted and challenged through the characters of Jane Withersteen and Lassiter, affecting both the storyline and the evolution of the characters, which shapes the overall outcome of the book.
Step-by-step explanation:
The roles of men and women in Riders of the Purple Sage are crucial to the storyline and convey traditional gender roles of the time, while also challenging and expanding upon them. Women like Jane Withersteen face societal pressures and limitations, but they also display independence and resilience. Men like Lassiter have traditional roles as rugged individuals and protectors, but they challenge the prevailing social norms and exhibit progressive views toward women's rights. These dynamics are pivotal to understanding the characters' motivations and ultimately influence the outcome of the action, as each character navigates the societal expectations and personal convictions that dictate the direction of the narrative.