If poor people have nothing there are no ways to acquire Bitcoin.
The key is earning in Bitcoin.
That's what gets people excited about it. As it stand some wee genius in rural Niger is going to have a seriously hard time monetising his skills and presenting them to the rest of the world. With Bitcoin and an internet connection he can instantly compete with anyone else anywhere.
To a much smaller extent we see that with people earning on this forum right now with signature campaigns and all the other stuff. They're now part of an economy that didn't exist before and some of them will be making much, much more money than any job available to them locally.