What makes a great worker?

I read somewhere that a good employee will do what is necessary to get the job done, regardless of the barriers you put in his/her way (I’m paraphrasing, I’m sure).  Recently, I find myself thinking a lot about what a good employee is…

I certainly have never been content with “good enough”.  Does that make me a good employee?  Lately, I’ve felt that this is more of a liability than valued trait.   I’ve been lucky enough to surround myself with people that firmly believe the bar exists to be raised, but I find so many people content to benchmark against the average, rather than against the uncommonly successful.   Honestly, I’m totally baffled.  Have I been wrong all these years to benchmark against the best, and constantly push to hit those marks (then subsequently raise the bar yet again)?

I read a great article by Dr. Paul Wong today about what makes a great worker.  While I got a lot out of it, I didn’t get an answer to my question… Am I a great worker?

I dunno…  What about you.  Do you agree with the articles points?  How about my “raising the bar” issue?