Unfortunately (at least in my opinion) the way to mitigate it is make contacts, friends, colleagues etc. Meet people, stay in touch with them. In my experience relationships are by far the most important aspect of a career. I'm not naturally someone who forms these relationships easily, but it's by far the most valuable and important thing I've done in terms of the jobs I've had.
It's VERY rare for me to work with people capable of even seeing the level I'm working at, sad but true. I suspect my solutions simply look weird to them, maybe with a touch of NIH-syndrome; even if they eventually grow to appreciate the integrity of the code. And it's difficult to see code that's never written, which is feel is the biggest win I bring to the table.
This means I'm mostly judged by my ability to perform mindless drone work.
