Google is putting an adblocker into Chrome in the hopes that people won't install AdBlockPlus ... and conveniently, Google's ad blocker will never block Google's own ads.
The new "Yes, be evil" Google is worth moving away from. After seven years of Chrome I've switched back to Firefox, and everyone else should too. Install AdBlockPlus and be in control of your own destiny.
By the way ... the majority of the most obnoxious ads are served by Facebook. If you're not a Facebook user (and really, no one should expose themselves to that toxicity) you can block all of their sites and domains in your hosts file, and get a much better browsing experience, especially on the sites that force you to turn off adblockers before you can view them.