[anoncake]

If their work didn't benefit Facebook (or at least if Facebook didn't believe their work benefited it), they would not get paid for it.

Also: What kind of person feels bad because their work merely benefits society but not Facebook?

[lhorie]

If that entails working on OSS tasks on your personal time at the expense of spending time w/ family/friends (because you can't justify spending company time on it to your boss), I'd say a lot of people would choose to not "benefit society" / pamper demanding freeloaders / whatever you wanna call it.

[anoncake]

I fully understand why people would choose not to work for free. But that was not the question. Work that does not benefit your employer tends to be work that your employer does not pay you for, but they're not the same.