It is straightforward for industry leaders to avoid living near data centers, but there's no way for them to insulate themselves from the extinction threat -- no way short of somehow eliminating the danger for everybody, which seems quite hard to do. Since industry leaders are as self-centered as everyone else, the extinction threat is what they think about.
Also, you describe the extinction threat as "further out". A lot of us think there is already some small amount of AI extinction risk being incurred every day. I.e., we think the period of danger has already begun.
If he is willing to lie to give his corporation some advantage, he couldn't come up with a lie that would sound less absurd and outlandish to the average decision-maker, who doesn't have much time to learn about this particular technology?
It is more likely in my eyes that he says it because he genuinely worries about AI extinction risk -- like many people do who've studied the technology for a long time.