The piece seems to equate capitalism with materialism. But the former is an economic system; the latter a universal human flaw.
Winning material wealth doesn't win love or happiness. Living in a country with a few socialist policies doesn't magically make you immune from falling into that trap.
https://www.wikiwand.com/en/Materialism
How is materialism a universal human flaw? From context I would assume you mean greed.
I think of greed as self-defeating. Letting your bet ride on the blackjack table, or believing a conman in hopes of a get-rich-quick scheme.
What I was trying to express when I said "materialism" is the idea that money is the solution to any problem, and that everyone else values money as much as you do.
excessively concerned with material possessions; money-oriented.
You assume the piece seeks to make an argument, or even a statement, as opposed to making vague references to popular/twitter sentiment.