I wouldn't necessarily say it's great for the economy, aside from cutting out the middle man that is the banking industry. Big money can still manipulate crypto markets, even more so than the regular stock exchange. It mainly makes the rich richer and the poor poorer, unfortunately. That being said, I think it gives opportunities for middle class to maybe break out of their situation and rise above. It is a moderately level playing field and there's no bouncer at the door charging you massive fees to trade. Your finances are in your hands, which is nice, but most people are idiots financially so =<