Annoyed Librarian often writes about librarian job postings are so demanding and so low-paying that they seem insulting to the librarians who read them. When I was in library school, we called these "West Jeff Jobs" because the West Jefferson Public Library was especially notorious for offering them. AL rants about what such jobs do for morale in the profession:
So, sure, in one sense, many of your jobs do suck, but I reserve my Library Jobs that Suck category for very specific jobs. A Library Job that Sucks must be temporary, part-time, and require an MLS and library experience. These have always seemed to me the most shameful jobs, the ones where libraries were trying to exploit a bad job market to get better librarians than they morally deserve, where they demand professionals but don't provide professional situations. Jobs like these make all of us worse off, because it shows that there are libraries that don't take seriously any professional or personal commitment to librarians. The librarians become mere widgets to be exploited at will and disposed of easily. That's hardly the sort of job that brings glory to the profession.
There's no such thing as "morally deserve" in relation to wages. You deserve only what your employer has agreed to pay you for your labor. And that's unlikely to be anything other than what the market can support. If you think that the market can support more, then go and get a different job.
You should assume that your employer is only interested in exploiting you for corporate (or personal) profit. Your employer should assume that your only interest is in personal profit. Once you understand that your employer only wants to exploit you, and that you only want to exploit your employer, you'll be much happier because you won't be guided by illusionary moral motives.
Your employer may regard you as nothing but a widget but (1) he'll do that anyway, even if you think that it's unfair or socially irresponsible and (2) you're free to do likewise to your employer. An employer might exploit a labor glut, but you're also free to exploit a labor shortage.
I think that some librarians get far too emotionally invested in their work, and that's why complaints like this are common. They want to save the world, or at least some part of it. They see their work as a moral calling rather than as a way to make money. And I confess that I, too, used to be afflicted with this impaired thinking.
Now, the only reason I go to work is for my paycheck. I earn it fair and square by doing the work that I agreed to do for that paycheck, and no more. If other people benefit or social goods are attained, it is of no consequence so me; only that I get paid.
And I'm quite open about this. My employer doesn't mind because I do my job well.
If you don't think that an employer is paying you enough money, don't work there. You have no moral duty to care about society in general or any institution or profession in particular. You're free to act in your self-interest, and so is everyone else.