More like, a company that is in the business of offering you information should not alter that information based on personal interest.
You wouldn't expect a map created by a company to hide streets where rival businesses are located for example, or your doctor to avoid disclosing a potential treatment because it's done by a rival health provider.
Funnily enough, I remember this being one of the differentiating factors that made people love google when they were starting to become popular - "our ads are unintrusive and clearly separated from actual content".