Unless the point of your comment was to deny that Google is collecting this data at all (because, according to you, there's no financial incentive), I don't see

Unless the point of your comment was to deny that Google is collecting this data at all (because, according to you, there's no financial incentive), I don't see the relevancy of your criticism. The complaint of the top level comment was that Google is collecting extremely personal data on us. Your response is that Google doesn't have an immediate financial incentive to do this. If you're not actually denying that Google collects this data, why does that matter? For most of us, the fact that our personal data has some financial value to a corporation is irrelevant to the fact that we don't want them to have it.