Just read a great post from Seth Godin.
Let me add something to this.
In terms of personality you cannot be both. These two personality traits, “perfect” and “interesting” tend to be mutually exclusive.
What this results in is a workplace of interesting people trying to be perfect and failing.
A workplace of perfect people who think they are interesting.
I don’t think it matter which you are; both have equal merit but you need to know which you are and you need to know what your work environment demands. If it demands both, then the company, your boss and you are all kidding themselves.
So you may want to remember this when considering what career you should be doing.