I think it's vital for employees to care about their jobs, the customer and doing everything within their power to see that their employer makes as much money as possible in a legal and fair competitive environment. Both the employee and the employer are responsible for ensuring that is the attitude employees come to work with each and every day.
The employee must choose as a matter of personal volition to have this attitude no matter what negative things a customer, their boss or someone else may do to disrupt that attitude. We've discussed this before but being offended is a personal choice. You can choose to be offended or you can choose to take no offense at the word or actions of another. The same goes towards having a good attitude about your job, your boss and everything you encounter at work. If you aren't happy (or whatever adjective you wish to insert here) with your employment then you only need to look in the mirror as to the source of the problem. There are plenty of people doing menial, unglorified jobs for minimum wage (or even less if they are illegal border crossers) who are extremely happy with the job they have been blessed with. Objectively their employer treats them far worse than anything an employee at US has to endure and they get no medical or other benefits and their employer may not even thank them once for doing a good job. You and I both know there are people like this but by your measure you probably cannot conceive of how such an employment existence could produce satisfaction. That's because satisfaction comes from within, as you surely know know one else can make you happy for an extended period of time.
For the employer who wants to create an environment of satisfaction that too can happen, but its significantly harder in a heavily regulated and heavily unionized industry like airlines. I'm not saying other airline employees are equally dissatisfied with their jobs like so many US employees on this board claim to be, but the environment is much more challenging than someone working at Google or somewhere where freedom is much more a part of the environment. Offering market-based pay, health and related benefits, SA travel and other things are all designed to encourage this kind of environment. Could more be done? Sure, but most cost far more money than what either US or HP has had available to them in the past decade. The cumulative effects of bankruptcies, 9/11, a federally-induced recession and host of other factors including being in debt up to the company's figurative eyeballs all come into play with the amount Management can do to create such an environment. The fact that the hard-core east pilots are holding the rest of the pilots and the FAs hostage on a new contract certainly doesn't improve anything for either labor or management.
If you want satisfaction then my suggestion is to either decide to be satisfied regardless of external factors or just move on to another job and check to see if you can find sustained job satisfaction under a new Management team.