Your average farmer isn’t developing any new crops, your average builder isn’t designing new construction mechanisms, and your average restaurant isn’t developing a new way to cook food. There are specific R&D centers for all that stuff. At best, the end users of that technology get to beta-test the functionality.

There are exception to everything, but farmers wouldn’t be remortgaging their homes for drones and millimeter-precision GPS systems if they could just build that tech themselves.