The company also faces controversy for so-called "filter bubbles " and how it handles hoaxes, fake news and other controversial content, while also remaining an open platform without censorship.
"We take our responsibility seriously, and today I want to talk about how we plan to do our part to build this global community".
But then Zuckerberg highlighted the growing global uncertainty and fear of a wide-open world among a wide swath of people.
In a 5,700-word manifesto, Zuckerberg, founder of the world's largest social network, quoted Abraham Lincoln, the United States president during the country's 19th century Civil War known for his eloquence, and offered a philosophical sweep that was unusual for a business magnate.
"For the past decade, Facebook has focused on connecting friends and families".
Citing the example of Prime Minister Narendra Modi's government, Zuckerberg explained how social networks can help establish governments of various countries connect with people.
"Research shows that some of the most obvious ideas, like showing people an article from the opposite perspective, actually deepen polarization by framing other perspectives as foreign", Zuckerberg said.
Samsung chief Jay Y. Lee arrested in South Korean corruption probe
His grandfather, Lee Byung-chul, was the founder of the Samsung Group, and had faced smuggling charges but was not arrested. But prosecutors on Tuesday made a second bid for his arrest, saying they had collected more evidence in recent weeks.
Facebook cares about getting people together in the physical world, not just on the internet. Obviously these are all tough challenges to tackle, but Zuckerberg noted that Facebook's work on artificial intelligence could make a difference. "We can help establish direct dialogue and accountability between people and our elected leaders", he wrote.
These online communities that help connect groups locally or globally "strengthen our social fabric", he said. This includes looping users into decisions made regarding the removal of controversial material from the site, something for which Facebook has been criticized again and again.
Initially, Zuckerberg said the idea of Facebook influencing the election was "pretty insane". "That's why I'm so anxious about sensationalism in media", he said.
Zuckerberg, who in recent months has been taking a more active role in civic affairs, announced in 2015 that he and his wife Priscilla Chan would donate 99 percent of their Facebook wealth - an estimated $45 billion - to philanthropic causes.
One thing Facebook will try to do is suggest "meaningful communities". Many responses were positive, including a few obligatory posts by current and former Facebook employees, but there were also quite a few that questioned Zuckerberg's motives in pushing globalization.
Though he never mentions him by name, Zuckerberg's manifesto was widely read as a rebuke of President Trump, whose appeals to nationalism, isolationism, and xenophobia are at odds with Facebook's ideals and culture.