Most people using open licenses over right–restricting GPL–style licenses do so for philosophical reasons.
They don't necessarily think they are better for getting reciprocal contributions from evil corporations even though many do argue that today, especially after GPLv3.
See the redis licensing debacle and why and how it was resolved. If I understand it correctly, the FSF could technically sell all of GNU tools to Microsoft which could in turn keep them closed source including all contributions over the past 40 years. Not without losing all of their remaining credibility, but still.
They don't necessarily think they are better for getting reciprocal contributions from evil corporations even though many do argue that today, especially after GPLv3.
See the redis licensing debacle and why and how it was resolved. If I understand it correctly, the FSF could technically sell all of GNU tools to Microsoft which could in turn keep them closed source including all contributions over the past 40 years. Not without losing all of their remaining credibility, but still.