Where do you think his "distinguished engineer" salary came from, I wonder? There are plenty of people working on OSS in their free time (or in poverty, for that matter).
Shouldn't you be thinking "it's nice Google diverted some of their funds to doing good" instead of trying to tie Pike's contributions in with everything else?
This conversation isn't about Google's backbone, it's about Pike's and Hickey's. It's easy to moralize when you've got nothing to lose and the lecture holds much less water.