The Agricultural Revolution certainly enlarged the sum total of food at the disposal of humankind, but the extra food did not translate into a better diet or more leisure.
Not then, maybe.
But it allowed people to become specialists, and specialties became more and more advanced and specific, and eventually that led to us having a society where the vast majority of people live to be adults and grow old. It expanded the realm of leisure and entertainment. It gave people motivation to contribute to the growth of society in their own way.
