So, there's this weird effect where basically every major company has a gigantic fundamental hypocrisy in their mission statement:
Google's is "organize the world's information and make it universally accessible and useful", and yet - if you leak anything about them as an employee, you are insta-fired. If you try to figure out any sense of organization about their product portfolio, good luck. If you try to scrape any of their results or content, you will be banned quite quickly.
Facebook's is "make the world a more open & transparent place", and yet they have done more than any company since AOL to turn the web into a series of walled gardens. Plus Mark Zuckerburg bought the 4 houses adjacent to his so that neighbors couldn't look onto his property, and walks around with a 24/7 security team.
Uber's is "make transportation as reliable as running water", but their goal is for people to give up their own cars - which they can use any time, any where, for zero marginal cost - to be at the mercy of Uber's service.
Palantir's is "Palantir Technologies is a mission-driven company, and a core component of that mission is protecting our fundamental rights to privacy and civil liberties", and they sell to the CIA so they can spy on you.
At the same time, these companies also do many things that actually are in accord with their mission statements.
I think that you can reconcile this by realizing that the fundamental imperative for every company is continued existence. Those who fail at this are replaced by those who succeed. The mission statement is a tool to ensure continued existence, because it serves to align & recruit employees with similar values, without which there would be no organization. But when there are other imperatives that are necessary for the company's continued existence, even when they contradict the mission statement, the company's existence takes priority. Hence Google is very strict about their proprietary information, even though their mission is to make all information universally accessible; Facebook wants all content on Facebook, even though they claim to be about making everything open & transparent; Uber wants to make transportation reliable & easy, as long as it's on Uber; and Palantir wants to protect civil liberties only so long as it involves buying Palantir software.