Look up % of world population living in hyperinlationary environments to get your answer. The post-debt driven economy is one where a handful of people cannot devalue your labor with a press of a button.
> Whats the use case here exactly? Freedom from corrupt governments that debase your currency into oblivion, only to adopt another currency which suffers from the same ultimate fate. Financial inclusion is the use case. It's broad, it's ambitious and ultimately to entrepreneurial interpretation.