So.... spoiler alert.....
if Dalinar has bonded with the stormfather, and the stormfather is who infuses gems with light, and if Dalinar can control his new spren enough, can he change the way highstorms interact with the world? Ex. frequency, strength etc
the point I am trying to get to is if he can learn to exert a certain level of control through his nahel bond he can essentially control the amount of stormlight given (which would control one of the most valuable things on roshar, currency)
he could change and possibly crash the economy based on his will alone.
also does this mean that he can hold out long enough that all surgebinders starve and go powerless? Same with shardplate? Does he get an unlimited amount of stormlight directly from his spren? Does he have unlimited bondsmithing potential while destroying the economy and making all magical forms of attack and defense (besides shardblades) useless? No radiant police force to stop him after they run out of stormlight....
It is a very good thing that Dalinar is a level headed, well rounded, honorable man.