The wealthiest 1% could disappear tomorrow and the world would keep going, probably improve drastically. But if all the rail workers disappeared we'd be fucked.
I suggest learning Ruby, it's a lot nicer and easier to learn than many others in my opinion. You can learn Crystal at the same time, it's got very similar syntax but it's a compiled language so super fast.
Capitalism has no interest in preservation except where it is profitable. Thinking about the long-term future, archaeologist's success and acting on it is not profitiable.
The wealthiest 1% could disappear tomorrow and the world would keep going, probably improve drastically. But if all the rail workers disappeared we'd be fucked.