You are living a very insulated "career". I can understand how you are so well ... insulated. Able to maintain fantasies. Stay in Disneyland, you may not be able to handle life outside the insulated and structured environement that has grown big with you in it.
Of course, that Fortune 150 company of "ours" may be next year's General Atomic, or Pennsylvania Railroad, RCA or even Enron. All of those Fortune 10 or bigger at one time.