I have always been a fan of the new-graduate advice "Get your foot in the door." By that I mean find a job in the industry you want to work in, even if it is below your expectations, and get yourself on the inside. Then, work your tail off and prove you can do a lot more than what you were hired to do, and work your way up the ladder.
Over the weekend, I went to a party at a friend's house and met a young woman whose story proves the point.
She graduated in 2001 with a degree in computer sciences and business administration. She knew she wanted to work in the retail world. Thanks to world events in the latter part of 2001, companies were holding off on hiring, and she was having a tough time finding a job.
She wound up taking a job doing routine work in a pharmacy for a national drug store chain. Thanks to her computer training, she started helping out with organizing and improving the work flow in the pharmacy, and later in the whole drug store. Her work got noticed. She got promoted to a management position at the store. She did a great job there and moved up to a regional position doing computer work and working with vendors to make the flow of supplies to stores work more efficiently. After 8 years, she was now working at the company's corporate office in downtown Manhattan. I have heard thousands of similar stories over the years (including my own).
The moral of the story is... that if you have faith in your abilities, work hard, and never have an "it's not my job" attitude when you see opportunities to do more than what your job requires, you can reach your career goals.