They are trying to convince themselves that is not the reason, because they'd like to think of themselves as above such trivial concerns as greed, and hunger fo

They are trying to convince themselves that is not the reason, because they'd like to think of themselves as above such trivial concerns as greed, and hunger for power, and fear of somebody else beating them to it and having power over them. So, they want to call their feelings as something else, something noble. And then, as others point out, they are also interested in other people believing this, whether for employees or lawsuits. But I think that would not justify saying these same things again and again, when by now they have nothing new to say and people have mostly made up their mind.