Bitcoin can help someone to be rich because if you remember that bitcoin is against in inflation and it fights inflation by having a feature for having a deflation and that is why it makes someone rich if they will hold their bitcoin then they can be rich and people in venezuela is saved if they will hold bitcoin and sell it right now.
I am not sure bitcoin was a saviour for the entire population but the people of Venezuela was drowned by the bad economic reforms of the government and bitcoin was a way for them to over come the struggles and the population who had the opportunity and knowledge made use of their low electricity prices and started mining and the ones who did that made some good money.