Thats a good point, given that so many consumer innovations today were commercialised from things born out of necessity in the military. Even the first Epipen-style device was for soldiers to administer nerve gas treatment.
Without these innovations, from my quick googling, we wouldn’t have (out of the huge number of inventions):
One of the first computers (ENIAC-for ballistics calculations)
GPS
Digital camera
Internet
Mobile phones? (originally used walkie talkie tech and infrastructure)
Jeep
Mass distributed female hygiene products
Duct tape
Super glue
Microwaves
Boeing 747 (long-range jet engine tech originally intended for military transport)
I have to say that I would design something that came out of the military.