Arguments like this one strike me as extremely condescending.

Have you directly spoken to developing world farmers who have experienced these problems?

Do you think people with these problems are just clamoring for the first world to come in and solve this for them with blockchain technology?

Do you think all of the participants in the situation you described would even adopt blockchain (the small farmer, the larger farmer who wants to steal land, the corrupt central government officials open to bribes)? If so, why? It seems the only person with an incentive for change is the one least likely to have strong influence for that change.