[lordnacho]

With hyperinflation yes, because then there are only real incomes, prices (and debts) become meaningless. A plumber can fix the toilet for a carpenter who makes a doorframe for the plumber, they don't need a number if they can agree those services are worth the same. Thus real incomes are still real.

With merely high inflation you still have insecurity. Many salaries are not inflation indexed (I struggle to think of anyone I know), so the only way to maintain your budget is to get a new job. For many lines of work, especially at the lower end of the scales, that's utterly unappetizing, and people would rather pressure their union to push up salaries.