Thompson specifically says that he doesn't trust Zuckerberg with that power. Even though Thompson suspects that he and Zuckerberg probably want the same global outcomes, he is inherently suspicious of any centrally controlled entity.
> my discomfort arises from my strong belief that centralized power is both inefficient and dangerous: no one person, or company, can figure out optimal solutions for everyone on their own, and history is riddled with examples of central planners ostensibly acting with the best of intentions — at least in their own minds — resulting in the most horrific of consequences; those consequences sometimes take the form of overt costs, both economic and humanitarian, and sometimes those costs are foregone opportunities and innovations. Usually it’s both.