“But I often wonder, if a person is practicing for a very long time, would he or she still have a reputation for having a nasty temper and all the negative things I've heard about Steve Jobs?”

he was pescetarian, that is ate no meat except fish, shrimp etc and shell fish, you will accumulate heavy metals including the cancer causing arsenic and brain skewering mercury if you eat like this, doomed by his own ignorance !

i have to say my observation of people who have practiced quite a while is they left their critical facilities out with the garbage many many years prior !