Those of us who aren't billionaires just have to satisfy more people with our arguments about why our ideas are worth doing. When you're funding everything, it's a lot easier to attribute pushback to personal preference rather than your overall worldview being flawed. After all, if your worldview was flawed, why are all these people working at your space company? How did you make all this money? Etc.
I don't actually if Jeff has drunk his own cool-aid, but I think people in his position have fewer people to push back against their worldview than most.
And it's not as attributable to Bezos, but Amazon is famous in journalism for asking for numerous "corrections" to articles about them, when those supposed corrections are actually just unrelated talking points and PR spin.