It means that Google often passes on opportunities to make more money if that would hurt or mislead users, advertisers or publishers.

Google's search rankings are unbiased. The ads team is separated from the search team. It's business model benefits from and supports an open internet, unlike other companies which lock users into their ecosystem.

Google is very transparent internally for a company it's size.

Google releases large of amounts of open source software and publishes research. For instance Google published a paper that explains in detail how it's Machine Translation system works.