Bitcoin is not a tool to improve life. This is a means of payment! Remember this!
It's not a means for payment either. If it was we'd see a growth in retailers/stores accepting bitcoin as payment. If that growth is happening in your part of the world, congratulations. But it's not happening in most parts of the world. The only transactions we see are between people who are already investors in bitcoin.
Bitcoin is an investment...that's how the market is treating it and it's the market that will determine the future utility.
As for improving lives, Bitcoin can absolutely be that and will be for as long as we live in a society that requires a currency to acquire goods and services. Any investment is a tool to improve one's life because it makes it easier for one to live their life in the future, if the investment grows positively.