Craig Heidecker:

“… I don’t do it to make money. If money comes with that, and it always has, that’s fine. But it’s not the driver. I do it for the same reason that Edison created telephonic communication, Oppenheimer harnessed nuclear fission, and DJ Kool Herc set up two turntables and a microphone on Sedgewick Avenue in the Bronx to move at great velocity towards a better future.”

I’m going to assume we all know who Edison and Oppenheimer are.

Clive Campbell (born April 16, 1955), better known by his stage name DJ Kool Herc, is a Jamaican–American DJ who is credited with helping originate hip hop music in The Bronx, New York City, in the early 1970s. Known as the "Founder of Hip-Hop" and "Father of Hip-Hop", Campbell began playing hard funk records of the sort typified by James Brown as an alternative both to the violent gang culture of the Bronx and to the nascent popularity of disco in the 1970s.

Campbell began to isolate the instrumental portion of the record which emphasized the drum beat—the "break"—and switch from one break to another. Using the same two-turntable set-up of disco DJs, he used two copies of the same record to elongate the break. This breakbeat DJing, using funky drum solos, formed the basis of hip hop music. Campbell's announcements and exhortations to dancers helped lead to the syncopated, rhythmically spoken accompaniment now known as rapping.

He called his dancers "break-boys" and "break-girls", or simply b-boys and b-girls. Campbell's DJ style was quickly taken up by figures such as Afrika Bambaataa and Grandmaster Flash. Unlike them, he never made the move into commercially recorded hip hop in its earliest years.

— Source

— Better Future (Mr. Green, feat. Kool Herc)