The last time I checked, Google is a free service. Regardless of whether Google had favored its own services or not, the whole argument that one should not promote one's own products / services is just non-sense. There are other search engines out there that people can use. I think people are just taking free things for granted these days. It is not written in the constitution somewhere that Google should be free and you shall enjoy it without any condition.
Government officials are always good at one thing - go after the big guys to make a name out of themselves. Afterall, these businesses did not get there by themselves, they owed it to the society and the government - if you believe in that.