It's a distributed protocol with wide adoption and enough liquidity to be easily traded anywhere in the world.
That makes it great as a medium of common exchange... I can easily convert from Canadian Dollars to BTC in Canada, then convert from BTC to Pesos in the Philippines so long as there's enough liquidity on either end.
Both parties still have to act within their respective legal frameworks, but it sidesteps the need to add even more parties into the mix, each of which take their own fees. International wire transfers are a great example of how opaque, slow and costly that can be.
You can go customer -> Canadian Company -> Filipino company -> customer.
The traditional way would be customer -> Canadian Company -> Canadian bank -> Intermediary bank(s) -> Filipino bank -> Filipino company -> Customer
I'm simplifying somewhat... obviously banks are involved in any domestic fiat transfers, but they're not involved in international transmittal (which they usually charge quite a bit for).