CEOs are hired to run companies and make themselves, and their investors, wealthy. That is their prime directive and CEOs are the ultimate partisans.

If a CEO feels that bending the truth, or outright lying, will advance the prime directive – then that is what they will do. Applying adjectives like "honest" or "untrustworthy" to them is a category error. Altman will say whatever benefits OpenAI, full stop. Musk will say whatever benefits his interests, full stop.

CEOs can't be good or bad people in a moral sense, or have the best interests of society at heart. (Despite what they may try to convey.) Better to think of them as automatons carrying out well-defined, and ultimately simple, goals.

They have a fiduciary responsibility to the shareholders & no one else, not even their employees or customers.