That is the essentially contention of the author of Surviving the Future - capitalism is a system that promotes the accumulation of money, which easy corrodes to greed.

One way of attributing our current economic woes is the rapidly worsening wealth gap. besides, capitalism does not have columns for entries in the account book for anything but money. Everything else is marginalized, i.e. "slackness".

jgw's slackness from retiring, aka having acquired enough capital to retire, is an escape from participatory capitalism (the American Dream?).

Isn't that interesting - the idea that the American Dream is to escape the capitalist system!

You never change things by fighting the existing reality.
To change something, build a new model that makes the old model obsolete.
R. Buckminster Fuller