If individuals changed, corporations would be forced to change (or would die) since they would no longer be profitable. It needs to be both at the same time.
That doesn't negate the positive moral implication of making a pleasant comfortable life while consuming less.
Business as usual for individuals means business as usual for corporations.
The Zombie Survival Guide by Max Brookes is a detailed fictional instruction manual. It's sequel is World War Z which is closer to a normal book, but still has an odd structure of creating a world through interviews ... and the The Zombie Survival Guide book exists within it.