There are 2.5 billion people in the world who don't have bank accounts or aren't allowed to.

I often see this statistic used in favour of Bitcoin - for obvious reasons. But about 50% (~3.6 billion) are without internet access.
With that in mind, is the bank statistic actually a legitimate point in favour of Bitcoin? Until internet access is more universal, it could be said that Bitcoin is another thing that only benefits the wealthy and developed world.