I think that in programing, like most other fields of endeavour, there are four main traits:

1. Those who treat it as work--a means to an end.

   Always employed, rarely inspired.

2. Those who treat it as an artform--an end in itself.

   Often inspired, often unemployed.

3. Those who treat it as a subject, often one of many, to be explored, expanded upon and shared.

   Often employed doing something else, or employing others. Always inspiring.

4. Those who use their knowledge as a cudgle with which to beat others over the head.

   Usually employed. Never inspired. Never inspiring.

Most people are a little of all of them. The critical factor is the mix.