You just pinpointed the problem.
He is good at one domain, and then by cognitive bias people think he is right on everything.
It’s not true at all, and I think you have to take a bit of distance with glorifying IT personalities.
Like Bill Gates, Elon Musk, Stallman, and many others (especially in the VC world) it’s important to take them with a grain of salt, and not accept them as perfect nice guys because they have money (Musk) or influence (Stallman).
Otherwise they can spread dangerous ideas that normally should 100% be challenged, but that are not, due to blind acceptance.