There was a reason for Jobs's cash hoarding. In 1998, he realized Apple was weeks from going broke and he had to go to Microsoft to beg for a lifeline. Bill Gates threw it without rubbing it in Jobs's face too much, at least publically. It was humiliating for Jobs, according to his biographer, Walter Issacson, and he vowed never to let that happen again. That's why Apple hoards billions in cash.
Dividends are good for investors, and many use that money to buy more stock, so it becomes a mutually helpful cycle. With Jobs's passing, this has been instituted by Cook, along with charitable donations, which was his first move as CEO.