Lol, its like asking "Why robberies don't happen inside the white house"? Man, G & Y are big daddies who have a terribly tight security. -S
Because guys from Google have such security crowd that you can't imagine. It's big money... If Google falls even for one minute, it would be a catastrophe.
Welcome to the Internet, or the WORLD. BIG COMPANY = DO NOT PISS ON THEIR HEDGE. Little Company = SHIT ALL OVER THEM. In other words, little companies are easier to " get into " Big Companies have BIG WALLS. LOTS MORE MONEY. There seems to be a lack of logic here in DP lately. Google this humtuma " LOGICAL SENSE " something of which a good dose would be required for your issues.