In college, one of my favorite professors gave me some great advice: no one cares about your career but you. While companies will claim that this isn't true, that loyalty is repaid, after analyzing the career progression of an attorney who is loyal to the company, I would beg to differ.
In the law industry, young associates begin their journey in their mid to late twenties, and work hard to impress the people around them. Some of these associates work their way up the ranks, growing in skill and developing books of business, and progress to partners. The really lucky ones who stick with it get to become equity partners, and make the big bucks. These lawyers have arrived. Or have they?
A few years ago, several partners at different firms launched massive law suits. They had been de-equitized with a vote. To be an equity partner, you have to put a significant amount of money into the partnership, and "buy" a piece, if you will. However, being de-equitized is evidently as simple as a vote from some unimpressed colleagues, who are just waiting for you to slip up and reveal your reference at some company for whom you get the credit for the business brought in. Evidently, arriving as an equity partner is not the end of the story. Because at some point, you will become "old" in the eyes of the attorneys around you, your great book of business will be scavengered and picked through. You will be de-equitized, and lose your position in the partnership. You will be over the hill, and no one will listen to you.
When the traditional model of the worker bee meets the corporate structure, you will get used up by the system. Young employees have a very clear view of this model, from watching their parents get used, and see with the baby boomers who struggle for recognition in their fields as their contemporaries increasingly try to push them out. Young employees see how difficult it is to stay relevant, and fend off the competition. If this is loyalty, loyalty is an ugly thing.