You are free, but won't necessarily do it. At a previous company, 90%+ of the code I wrote was (A/L)GPL licensed, yet we sold it (to companies) and our clients never redistributed it. The only code available publicly was the one we purposefully shared.

This probably wouldn't work in many cases (particularly consumer software), but a trucking company or a clothes manufacturer has no interest in becoming a software distributor. They just like not being locked-in to us.