My father-in-law is the only INTJ that I know really well, but this has been my experience with him. He's an incredibly handy guy: built a gazebo in his backyard, installs electrical outlets and switches, constructed a patio, you name it. I remember when I first realized how many skills he had (the guy is a genuine polymath), I asked him straight, was he ever a contractor? He said no. The closest he came was working maintenance for a few years after he got out of the military, and as [MENTION=8936]highlander[/MENTION] said, he got "bored" with it. His exact words. He wants to do make/repair things on his terms when he feels like doing it, as a passion or hobby, not a job.
Now he works in the martial arts / fitness industry and owns his own business. (And just to confirm what [MENTION=29849]Yuu[/MENTION] said, his wife does 90% of the marketing). Thus, just going by my own limited experience, I would have to agree with what's already been said.
Of course, any type can excel in any field, if they're so inclined. Calling it a "bad career choice" may be a poor choice of words because I'm sure there's at least one INTJ out there who enjoys being a carpenter. I just don't know if most INTJs would be drawn to it as a career.