No, they'll only block ads that don't follow the guidelines defined by the Coalition for Better Ads [0] (Google is a member, but there is a lot of other members, like Facebook, ...). Note that this may include ads provided by Google.
It is either naive or cynical to insist that a giant unaccountable organization will or won't do anything in particular with respect to its core business.
Yes I`m just kidding, But google is far too POWERFUL anyway.