Imagine Google is a public utility. Would it be worthwhile for the society to spend that much manpower to funnel the feedback brute-force way like that ? To me, it clearly is a waste of money for the society, and an inefficient and pointless way to improve the product.

This kind of deontological approach is not very useful unless it's applied to a morally important issue, and even then, an utilitarian/consequentialist approach is needed to cross-check to make sure deontological approach doesn't go astray.