A tragic but obviously fictional story. A man with that amount of emunah would never have visited the doctor in the first place, much less allowed the doctor to amputate his leg. If H” wanted his leg to be amputated, it would have fallen off rather than having to have surgery at the hands of men. With sepsis setting in from the ulcer, the resulting blood infection would have killed him (c”vs). End of story.
Also, if he had made it out of the hospital, with his level of emunah he never would have accepted government disability payments, never would have accepted rides in an ambulette (Hatzolah maybe), and certainly never would have set foot in an government-sponsored social center (with the goyim?? Gasp!). However, since he never took medication, his children’s shidduchim should be fine, since he was housebound and therefore the family was able to hide his illness.
Now switch doctor with psychiatrist, diabetes meds with anti-depressants, and losing a leg with losing the ability to function/control one’s impulses. Also a tragic story that could have been prevented by recognizing that doctors/psychiatrists are Hashem’s shluchim.