Today all that has changed is that Gordon Gekko now wears a rainbow t-shirt and preaches to aim your inequality pitchforks at your fellow workers under his rule.
It has been well over 2000 years since "divide et imper", and nothing has changed, really.
Are you sure you haven't been divided and conquered by this transparent nonense?
Another point is that most civilizations last roughly 10 generations, or 250 years, on average. Doomers like Thom Hartmann brought up a reference to this a few years back, and there's something to it. I think the cyclical "saeculum" is a better model because it defines collapse crisis points happen in cycles, and that civilizations don't just disappear, they diffusely fall apart and are either reformed or replaced after there is sufficient decline, strife, and chaos. Most of the time, people choose periodic, limited reform.
tldr: If you're not a billionaire, billionaires don't care about your survival.
PS: Perhaps the prevalence of works of fiction dealing with apocalyptic themes are a sociological thermometer, and that memetic replication of this possibly leads to a kind of self-fulfilling prophecy that doesn't necessarily need to happen. For example, climate change isn't a binary, omnicidal apocalypse (or not) and most of it its worst effects are reversible for -$10T's spent on efficient carbon sequestration.