That sounds like 19th century fire and brimstone revivalism. Most Christians are not that nihilistic. The sects that survive and flourish tend to be those that don't impose a fatalistic view of the world.
So here it could be seen as an excuse to not only exploit existing systems, but also to avoid attempts at fixing them.
So in a way, holders of such fatalistic believes are ironically flourishing
but what I'll push back a bit on is that not all fatalistic convictions result in the death or collapse of the sect holding them, and sometimes it could be the main driver of their success