I can only speak to my own experiences, but at least in my case the news has really turned me off to these companies. A year or so ago I turned down an offer from Palantir due largely to privacy and ethical concerns, and since that time every single instance of Palantir showing up in the news has made me think to myself "Man I'm glad I didn't take that offer." I suspect I am not alone in my desire to make the world a better place through hacking and technology. Then again I also suspect that there is some set of less scrupulous engineers out there following the dollars. In that case I would guess that the effect of this kind of publicity is polarizing, but not in a single direction.