It is quite important because
it bridges the unbank to online transactions.
it enables borderless transfers without relying on a third-party company
it can give privacy to one's wealth
it give pseudo-anonymity to both parties when transferring funds (as long as it does not go through to any centralized exchanges)
it gives job opportunities since many companies are taking advantage of Bitcoin's popularity and adoption.
the technology behind Bitcoin is one of the futures of the financial system.
To society, it is still nothing much but as an alternative currency.
As an alternative currency, it had done so much to the society like the one I listed above.