Actually, most Googlers work on creating ad-inventory, ie gmail, blogger, G+ etc. Only a small fraction work on the ads technology itself.
I see what you are saying though, most of that isn't shiny.
I see what you are saying though, most of that isn't shiny.
They'll stop doing it, when candidates stop beating down their door to get in. That I suspect if what's really behind self-driving cars and the like. No-one would put up with being dicked around by their recruiters if they knew that 99% of Google staff working on displaying, billing for, and reporting on ads.