Yes you can, by pricing according to their needs and not according to your costs.
It's easy to forget that poor people are still people -- they have base needs like the rest of us: they need food, drink, clothes and of course shelter regardless of their financial situation. Some are currently able to meet those basic needs by holding multiple jobs, taking out loans or putting up with someone else (relative, friend) that is economically well-off. Regardless of how they do it, these basic needs translate into economic activities for whoever is able to fulfil them at a price they can afford.
Of course to break even, your business model needs to factor in the fact that it will take longer than the average to see any return on invested capital.
https://gems.org/ might disagree with that statement. It's a project that I have high hopes for. And they even make a good argument why they have decided to go the blockchain route, while others in the space have by and large failed to make their case.
It's easy to forget that poor people are still people -- they have base needs like the rest of us: they need food, drink, clothes and of course shelter regardless of their financial situation. Some are currently able to meet those basic needs by holding multiple jobs, taking out loans or putting up with someone else (relative, friend) that is economically well-off. Regardless of how they do it, these basic needs translate into economic activities for whoever is able to fulfil them at a price they can afford.
Of course to break even, your business model needs to factor in the fact that it will take longer than the average to see any return on invested capital.