en.wikipedia.org/wiki/Oligarchy

This clause misstates what Citizens United v. FEC did.

The Federal Election Commission’s official summary says the 2010 ruling overturned bans on independent expenditures by corporations and on certain corporate-funded electioneering communications, while not affecting the ban on corporate contributions. The FEC also separately documents that federal contributions are still subject to limits and publishes the current candidate contribution caps.

So the decision did not "remove limits on donations to political campaigns." It changed the law on some forms of independent political spending, which is legally distinct from direct contributions (donations) to candidates and campaigns.

This wording is inaccurate as a statement of Musk’s formal title/position.

President Trump’s January 20, 2025 executive order establishing DOGE says the temporary DOGE organization "shall be headed by the USDS Administrator". It does not name Musk as that administrator.

Then, in February 2025, the White House told a federal court that Musk was not the DOGE administrator and was instead advising the president. AP summarized the filing by reporting that the White House said Musk was "not in charge at DOGE" and was "rather a senior adviser to President Donald Trump."

That means the article’s phrasing that Musk was the "head of the Department of Government Efficiency (DOGE)" conflicts with the administration’s own formal description of the role. This correction is about the official position/title, not about whether Musk exercised substantial informal influence over DOGE-related actions.