I think the average person, or at least the average internet commenter, is too ready to consider large sectors of the economy "malignant" even in the best of times.
But without debating which analogy is right, it does matter whether it's cancer or not. And if aggressive treatment of advanced cancer involves cutting out major organs and the patient will only survive a month longer at best, it makes more sense to assume it's not terminal cancer and act accordingly even if there's a chance.
If someone appears to have a seizure and/or falls down and passes out, it could be a stroke, they could have cancer that's metastasized everywhere, but you don't make that assumption when there are many easily treatable possibilities.