IoT only makes sense for data gathering and processing
One great idea would be multiple sensors to be used on farms monitoring temperature, rainfall, humidity, soil moisture, & soil acidity/alkalinity.
Couple this with the use of an automated drone using GPS to navigate over each of these sensors to act as the 'remote WiFi' to collect this locally stored data, which would overcome the issue of the lack of WiFi/4G signal over large rural areas.
Or just add WiFi repeaters across the estate too, to create a local hive network.
Call it PHARM - Portable Harvest Agricultural Realtime Management.
That'll be $5 million start up capital to get me up and running please.
#ActuallyQuiteSerious.