I'd recommend looking at Project Catalyst out of the Cardano ecosystem.
Of course the proposals are still heavily focused on internal/ecosystem development but there's an increasing focus on building platforms for people in developing regions as well. There has generally been a heavy focus on improving connectivity and access to affordable financial services within the African continent however recently there's been slowly growing focus on other regions with large unbanked or under-banked populations.
With the amount of money that is allotted via the treasury for the Cardano ecosystem, Catalyst (and eventually proper on-chain governance when it evolves into that) has funding to comfortably run it's 6 week cadence funding rounds indefinitely at a rate of 15 million USD per round once it finished scaling up. As the network grows the scale will likely increase but regardless I think with the focuses the community has (particularly thanks to West Africa Decentralised Alliance) we'll see increasing focus on improving infrastructure and access in developing regions.
And while you could argue that many of the solutions proposed have some net positive effect flowing back to the ecosystem, generally the focus has been on connecting people rather than driving traffic to the network.
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Sorry if that got a little long winded. It's a cool project+community and we've been working really hard to avoid the toxic coin maximalist & self-centred behaviour that's become so incredibly common in the space.