Jobs took on the pc industry and lost. But helped introduce a lot of great technologies in the PC industry. They also got it started.
Jobs took introduced the GUI that was largely ignored until Windows was popularized in the early 90s.
Jobs took on the music industry and unblocked the online music market.
Jobs took on the cellphone market and beat the incumbents.
He created the tablet market (even though MS created it first).
Musk revolutionized online Payments with PayPal.
Musk took on the Car industry and unblocked Electric Cars, something consumers want but Big Oil hates. Today everyone dreams of having an electric car.
Must took on the Energy market with SolarCity. Some success but nothing revolutionary.
Musk took on the entrenched, overpriced, bureaucratic, an dead US Space industry and brought it back to life. He's taken the lead in developing cheap alternatives to orbit.
Jobs ultimate success moment was the iPod / iTunes, the creation of a toy and fashion accessory. And its follow up toy/fashion accessory the iPhone and the iPad.
Musk may well be remembered as the guy that gave us electric cars and the guy that got us to Mars (TBD) and gave the little guy a key tool to start an online business (ie. the eBay killer app)