I've just finished reading 'The Last Lecture' by Randy Pausch. You may not think it's a business book - but you'd be wrong. There are many business lessons, as well as life lessons in this book. Over the next couple of weeks I'll be sharing some of those business lessons with you.
For starters, try this on - no job is beneath you. Randy's father told him the same thing my father told me - work hard and become the best at whatever you do, even if it's digging ditches.
No job is beneath you because you can learn from anything. The lessons you learn in the mailroom will serve you well as you move up the chain. If you try to shortcut the system and jump right into management you will find your job much harder. This is because you can't relate to the people who are working for you.
If you don't have an understanding of what they are going through you won't be able to work effectively with them to problem solve and improve the workflow.
So, be thankful for the roles you play - no matter what they are - and do them well. You will be a better leader because of them.