This is a scenario of possibly benefiting multiple communities.
Let's say there are five different shuls all in remote communities. Each shul has just one Torah but it is pasul (non usable). They each called a professional sofer, and the sofer says that the place where it is passul has extremely brittle parchment and numerous errors that he cannot properly rewrite it without replacing the whole piece of parchment.
Let's further state that each of these Sifrei Torah are "Vavei Ha'amudim" Torah, meaning they they all are written in the same (standard) format. But, in each Torah, the brittle parchment is in a different place. None of these communities can afford to pay for a sofer to rewrite this section on a blank parchment, and they are all seeking a donation from someone for the correct parchment replacement.
A shul in a big city has an extra Sefer Torah that they can spare, and they would like to help out all five communities. It's a choice of these shuls having no Torah at all, so there is never a public Torah reading, or helping them out. Can the shul use a completely good Torah and divide it to help out these other shuls?
What if the shul in the big city has a pasul Torah, but this one could be easily fixed? Now that the Torah is pasul anyway, can they choose not to fix it and divide it up for the other shuls?