Belief within limits, yes. At least, I can only think of a couple of possible explanations for the event:
1. Cook only cares about pursuing profits, but at a shareholder meeting where shareholders were pressuring him to pursue profits, he lied to them (and had the presence of mind and acting chops to pretend to be uncharacteristically angry about it), because he believed that the story would get reported on and Apple fans would want to hear it, and he made the calculation that that would be more beneficial to his bottom line than being honest (or at least more politically neutral) with his shareholders.
2. Cook really does believe about accessibility, environmental issues, and worker safety, and he tries (or at least likes to think that he tries) to take steps toward those causes at the expense of profits, but he's also a complex and flawed mixture of motivations and is capable of compromising his values (and/or of letting those under him compromise their values) to varying degrees in the face of financial rewards or the pressures of the capitalist system.
#2 seems more likely and is more consistent with my view of humanity in general.
It's also worth noting that the meeting in question was in 2104. That's over a decade ago now.
It's entirely possible that Cook was fully sincere then, but that over the subsequent 11 years, marinating in the toxic stew that is the upper echelons of American industry has eroded his principles and he is now more willing to listen to the voices pushing for money over all else (whether those voices are outside or inside his own head).
#2 seems more probable to me for any given human being selected at random.
#1 seems more probable given a human being that has been selected to head one of the most valuable companies on the planet. That's his entire job -- to play a carefully crafted role for the public, the share holders and the media. He isn't paid to stand up at a shareholder meeting and let any sort of genuine feelings slip through, unless those feelings happen to be the right ones for that role at that moment.
1. Cook only cares about pursuing profits, but at a shareholder meeting where shareholders were pressuring him to pursue profits, he lied to them (and had the presence of mind and acting chops to pretend to be uncharacteristically angry about it), because he believed that the story would get reported on and Apple fans would want to hear it, and he made the calculation that that would be more beneficial to his bottom line than being honest (or at least more politically neutral) with his shareholders.
2. Cook really does believe about accessibility, environmental issues, and worker safety, and he tries (or at least likes to think that he tries) to take steps toward those causes at the expense of profits, but he's also a complex and flawed mixture of motivations and is capable of compromising his values (and/or of letting those under him compromise their values) to varying degrees in the face of financial rewards or the pressures of the capitalist system.
#2 seems more likely and is more consistent with my view of humanity in general.