Yes, but Jobs had a very rare type of cancer, neuroendocrine. One that was, apparently, much easier to treat because it grows very slowly. He was diagnosed, could have gotten a surgery and dealt with what the doctors called a "shadow" on his pancreas. He decided, instead, that he would opt for more holistic treatments. 9 months later, he opts for modern treatments. At this point it was too late.

Pancreatic cancer survival rate is so low because it's usually caught when things are too late, as there are usually no symptoms when it's treatable. Job's not only had the easier version of pancreatic cancer to deal with, he also caught it at the literal perfect time. The only reason he died was because he decided that he knew better.