Google Conflict of Interest?

Google seems to keep gobbling up services, but what does this mean to your search results? Are they constantly pointing you back to Google based products? Is Google just one big cycle pointing back at Google? Back in the day, Google’s mission was to scour websites and report back to you the most popular websites. However if they own all the most popular websites, is this a conflict of interest? It seems that in the end the information overload is mirage because it’s not pointing back to various sources of information just one. Is this good or bad? I am not sure.