A coin or a bank note are far from being non-technologies, and the logistics to getting them to where they are needed are underrated.
Connectivity and devices are not that big of a leap forward from there and seeing how hungry western and Asian businesses are to open new markets in underserved areas, it’s unlikely lack of connectivity itself will further inequalities. Not for long anyways.
The need for powerful computing gear could, maybe, if there is any advantage to being part of the mining network...