I don't think it's so much about being a "programmer" as a just a better person. In my experience the worst programmers usually have some bad personality trait

I don't think it's so much about being a "programmer" as a just a better person. In my experience the worst programmers usually have some bad personality traits, either lazy, unqualified or whatever else or sarcastic, rude, arrogant and runs across the spectrum of bad to good in terms of ability. I think one of the keys to being a better programmer/person is having a good ability for self reflection and self awareness. Unfortunately these skills are developed at a very young age and in many cases it is too late to cultivate that mentality except some rare cases.