Thanks for pointing out the Nigerian Steem community. I spent 5 formative years a few countries over at a mission clinic in Northern Ghana, so I'm really hopeful that decentralization tech can help struggling people in that area break free of at least some of what's been holding them back.
I think BitShares is much more decentralized than Steem, and hopefully EOS will be even better given its distribution approach. Steem centralization is really pretty bad in my opinion, but that centralization has enabled bootstrapping accessibility to onboard people into the blockchain movement more efficiently than any other network I've seen. I hope Steem's issues can be resolved, but regardless I think for many it's a crucial stepping stone to more sustainable and decentralized networks.