Whether it's the government deciding saccharin is bad for everybody or Bill Gates or Steve Jobs deciding what software I can use on my computer or coriordan deciding what license is best for someone else's software, the common thread is to unilaterally decide for other people, based on "I am ideologically pure".
I personally like GPLv2 and release what little software I do using it. But like every human endeavor, browbeating is more likely to put people off than get the desired results. Were I to make my licensing decisions today, I do not know if I would choose any version of the GPL, simply because of the increasingly shrill "I know what's good for you" attitude of the Stallman true believers. I tried, once, talking with Stallman about something very general, and was astonished at how rigid his thinking was and how rapidly the diatribes began -- GPL or be damned.
I believe most patches and fixes are submitted to projects because the patch author wants to help the main project and not maintain a private fork of the sources. The license has little to do with it. Even if someone does start by maintaining their own set of patches, at some point it gets to be too much hassle, and they merge at least most of their patches back in to the mainline. I myself have some patches for projects I use but the author doesn't want or because I simply can't contact them, and it's no picnic.
I believe that Google would be just as likely to submit fixes to Linux without the GPL as they do now, because they don't want to maintain a sea of patches for the rest of Android's life. Ideology and "do no evil" be damned -- it's easier and in their own best interests.
Harping upon what license authors choose for their software is beyond elite and arrogant. It is counter productive. Stallman is a genius in many ways, but his acolytes do no good for either him or the FSF by turning every discussion into an argy bargy on how holy the GPL is. Sneers at these choices or other licenses in general turns people off and leaves enough bad taste behind to deter ever using the one true license.