With great power comes great responsibility (insert your own cliche here). Where one company has a virtual monopoly on searching they have a particular responsibility to ensure that their results do not contribute to the spread of false information.
As the pre-eminent company in the field Google have the greatest responsibility, and the most to lose, if they do not ensure the integrity of their results. The evidence is that they are not living up to their responsibilities.
Google’s search algorithm appears to be systematically promoting information that is either false or slanted with an extreme rightwing bias on subjects as varied as climate change and homosexuality.
Following a recent investigation by the Observer, which found that Google’s search engine prominently suggests neo-Nazi websites and antisemitic writing, the Guardian has uncovered a dozen additional examples of biased search results.
Google’s search algorithm and its autocomplete function prioritize websites
Source: How Google’s search algorithm spreads false information with a rightwing bias | Technology | The Guardian