The market is ultimately self-correcting. If Google or any other enterprise (NY Times, CBS, etc.) is outed as inaccurate or dishonest, people will stop using it or listening to it.
The barriers to entry are pretty low. Anyone can pretty much build their own search engine and fine tune it to their liking.
That's comforting, but I remember how many decades it took for a substantial number of people to catch on to the leftist bias at the alphabet networks.
I remember very well the rolling eyeballs back in the early eighties when I would insist that no, it wasn't just "sensationalism" in an effort to sell newspapers/magazines/news broadcasts, but a consistent pattern of bias.
Heck, I still get it today when I recount instances of the media not just distorting or "spinning," but making things up out of thin air.
It's still too early to tell what will happen, but I think there's a danger.