Then would you prefer if I called it a proton gradient? Because it is the reason why your mitochondria work and also how all neurons transmit information.
http://www.zuniv.net/physiology/book/images/n2-1.jpg
The above is not really a clear picture of the whole process, but I don't really want to have to explain how it works rn.
Electrons exist in a dual state. Plasma - high energy atoms whose movement is characterized primarily by their electrons - can reach near the speed of light. By all means, we treat certain electrical movements as light, such as those in the optic fibers I linked above. Optic fibers which are designed with snell's law in mind.