Comment by tonymet

Or the copyright holders can start dual licensing their software for commercial use

license A is GPL or MIT for academic and free applications

License B is for commercial use, with a fee

The license is literally whatever you want to put into it.

IMO the issue is with the open source community gatekeeping these policies. Shaming developers for proposing commercial licensing, then shaming corporations for properly using the IP according to the free license (e.g. MIT)