alt Hacker NewsThat can happen, sure, but the cancer's strategy is not a winning one - it dies along with the host.
Again, I'm not arguing for some naive Panglossian view. Things can get pretty bad transiently.
I just take exception at the cynical view that evil is somehow intrinsically more powerful than good.
"Survival of the fittest" is often misunderstood that way too, as survival of the strong and selfish, when, on the contrary, evolution is full of examples of cooperation being stable over long timescales.
Evil simply has more options available than good. Sure, those options, like all options, have pros and cons. Cancer, like sociopathy, can have a pretty good run even if it ends ultimately in demise.
I very much want to push back against any bias towards a just world. Bad people often live their whole lives without any consequence (think prostate cancer) while good people struggle (think my cuticles, which deserve much more than I usually give).