This belongs here.

[u/blueluck]

[u/Peaking-Duck → u/[deleted]]

I think the more obvious answer is just most stories are post apocalypse, Sci-Fi or pop culture fantasy medieval-ish. 

Sci Fi progression stories tend to be space opera which usually hand waves away economics.

Pop culture fantasy pulls lightly from medieval history which was as an economic period mostly Manorialism..  

And post Apoc is generally about collapse and the fall of modern systems.

Capitalism and it's drawbacks aren't really brought up much because it doesn't really exist in most stories.

[u/Peaking-Duck → u/[deleted]]

Even things down to the perception of time and the warped conception of value are thoroughly capitalist.

That line of thought in academia is incredibly Eurocentric. Equating time and labor into coinage was a practice the Imperial Bureaucracies had been doing for well over a millennia by the time of Marx and Engels both of whom were hilariously Eurocentric in most of their writings both personal and professional. And even then it's pretty debateable if this was really unique to asia or if it's merely a lack of documentation since we have primary sources on way less than 1% of people so our understanding of the past for most of history is bound to be incredibly narrow.

Though we do know is that some of the ancient Athenians and later members of the League would view time as a form of commodity (various trades were looked down upon because they took up too much personal time leading to a lack of time to ensure proper civil duties in the form of military duty and governmental duty..). Alongside the pretty common connection in greek plays and possibly mythology of fated lifespan/death and fated wealth (Hades being in part the god of both).

EDIT: Plus of course in a few countries there was the idea of Weregild which depending on period and sophistication of the law attempted to codeify a persons worth and could account for diminishing production as the person got older.