This has nothing to do with AI. You could say the same about a human agricultural consultant. A person can absolve their own sense of guilt by saying that they

This has nothing to do with AI. You could say the same about a human agricultural consultant. A person can absolve their own sense of guilt by saying that they were just following instructions. But the farmer still chose here to use the AI, or to implement its recommendations. A person can even talk themselves out of feeling guilty for a bad choice just by saying "I felt so strongly, I couldn't do anything differently". Some choice was still made by the person; they bear the responsibility even if they don't think they do.