Some companies give stock as a primary benefit. Some of those companies may provide stock in lieu of some or all of a salary. That doesn’t mean it’s necessary valuable - they typically give you some amount of stock equal to a part of your salary (or some other normal monetary amount), and you would be hopeful the value increases substantially over time.
Just the fact that the other person has stock from their time being employed by Disney is no indicator of their wealth. You can own partial stock as well. It could be worth $50. We don’t know.