I don't think it has anything to do with the will to contribute something back. You need a lawyer to do anything with GPL'd software in commercial setting, and

I don't think it has anything to do with the will to contribute something back. You need a lawyer to do anything with GPL'd software in commercial setting, and even lawyers will sometimes disagree (e.g., what is a derivative work?). With BSD-licensed software you don't have to worry about lawyers. So which software do you pick?