Bitcoin definitely useful for a troubled economy in the market it is an economy booster and employment booster in the market
I concur. Bitcoin brings many employment opportunities for people around the world. Since it's open, and anyone can use it, people can get paid easily without restrictions (unlike real world currencies). In times where government-issued currencies fail, there will always be the need for Bitcoin just as there is for Gold. Being a cryptocurrrency free from central control, is a huge plus in my opinion, since the people are the ones who decide its value and prosperity over time.
All in all, Bitcoin has enabled a new asset class which operates on its own, enabling people to gain control of their financial life once more. And this is very convenient for a troubled economy, as you'll have more spending power over time, since Bitcoin was designed to be a deflationary cryptocurrency after all.