My wife is going to school to become a programmer. She is the exact opposite of me. She is passionate about programming and it's a job to her. She hates talking about code outside of working hours. Yet she's a good programmer that can get the job done and has a part time job while at school.

I believe there are many people like her in the industry and they are the ones who do the majority of the work.

I have a super passionate colleague. It's actually counter productive working with him because most of our energy goes into design debates and office politics and competition