The CEO of a company - whether public or not - is expected to make certain decisions completely on his or her own.
Like the captain of a ship. Consider that all the captains of the US missile submarine fleet have the authority to nuke President Putin back to the stone ages should the sub ever lose communications with their commanders in the Pentagon.
Like the captain of a ship, the CEO of a company can be relieved of command, should - NOT the stockholders but THE BOARD OF DIRECTORS - feel he or she is doing a bad job.
Like say, when the Apple board tossed Steve Jobs out on his ear, put Woz out to pasture, scouted around for a more multinational kinda brand-oriented guy, brought in John Scully, who proceeded to lay off four thousand of my coworkers back when I was doing MacTCP QA for Apple, because he'd never actually used a computer in his entire life before hiring on at the Cupertino Fruit Company.
Rly. I still have my Apple Employee Loan-to-Own PowerMac 8500. That tradition got started specifically because of Scully not knowing how to use a computer. That was actually a common problem back in the day. Actually it still is; I know of some guy whose computer was running real slow, because he hide NINE Internet Explorer toolbars. But I digress.
Now suppose Timmy-baby really wasn't doing his job, but the board backed him. Then the job of the shareholders would be to elect a new board. That's one of the things they often do at these shareholder meetings. It would be up to a vote of the board to replace the CEO.
As for those who object to Apple's green policies. Consider how many citizens of the People's Republic of China work for Apple, or for one of Apple's suppliers such as FoxConn. I expect that - indirectly - far more people work for Apple in the PRC than do in the whole rest of the world put together.
The air in China used to be pretty clean because the people lived in a very simple manner, they didn't own many consumer products, they all dressed in olive drab and rode bicycles to work and school. Even Ambassador George Herbert Walker Bush rode his bike to the embassy in Peking!
While nominally still Communist, actually it is quite likely the closest to unfettered capitalism of anywhere on the planet. Without the slightest thought towards urban planning, there are factories everywhere, everyone who has a good job has a nice car, and a nice place to live. Thus they had that one hundred mile long traffic jam that lasted a week.
China gets most of its energy from coal. It is plentiful there. They import coal as well; there is a controversial proposal to build a coal terminal where I now live in Vancouver, Washington, so coal mined in Montana can be loaded onto cargo ships then transported to China.
This had the eventual result that I recently saw the most amazing photograph. I don't have a link but maybe I can dig it up then post it in a reply.
The smog is so thick in many Chinese cities that one cannot see the sky, certainly not the sunrise.
So along the busy streets, in the early mornings, they have installed very large video screens that show the rising Sun.
The photo I saw, the video on that screen was so beautiful, but the smog was so thick that the people couldn't see more than maybe thirty feet. That's why the life expectancy in Beijing has gone down by fifteen years.
I don't know that Tim Cook is worrying about his Chinese employees, or those of his Chinese vendors, but if he wants FoxConn to keep assembling iDevices, they can't all be dropping dead of emphysema can they? Grandpa Crawford died of that, he spent his last five years on a portable oxygen tank. It's a nasty way to go.