She could argue that you don't need to sell the same thing every year and therefore, we could all try something different this year, not just candy.
She also could argue that candies are not healthy and it's time to distance ourselves from them for now.
The best argument that she could pull off would be, if that was really the case, if fruits were easier and more profitable to sell. By far, if that was the argument, they would all sell fruit easily.
I believe the answer is doubtful.
Even it is true that Jim would have an important perspective of the story because he also had many hard times and feelings, it would not be that inspirational, because Della's suffered a whole lot more than Jim. So Jim's perspective would obscure the significance, intention and strenght of the story. One of the reasons why O.Henry chose Della is because as a woman would tell the story with more sentiment and with the appropiate feeling
