Google have every right to promote it's products within it's own search results. I'd like to see Google pull its offices out of the EU and then inform the EU Commision that it fails to recognise its authority in this matter.
At the end of the day the only people complaining about any of this are the people who have failed to achieve the level of success the Google has achieved. And if users do have an issue with the way that Google provide its services then they do have alternatives in this matter.
After all it's not like there are no alternatives to pretty much every service Google offer, but there is a reason most people prefer to use them, and normally that's because they like and prefer the way the services is run and provided.