This is just completely incorrect. All stock holders own part of the company. I own part of the company. If you have a pension or any retirement savings in mutual funds, you own Apple stock as well. Do you not deserve that growth?
$1 billion dollars is Cook's entire net worth, which is mostly derived from Apple stock, which is determined by what people are willing to pay to own that stock at the time of the article. It could be 50% higher tomorrow, it could be 50% lower tomorrow. This is not the same as his salary. Not even close. It is not what Apple pays him.
In fact, Cook's net worth includes everything he did before Apple as well. He was highly successful even before joining Apple.
Also, I don't understand what this means. Cook "slurs" his "low employees"? I don't get it.