Recognising and then losing this mindset is so important. Many of my younger friends who have only been employed a few years appear to have fierce loyalty to their employers. So many have sacrificed salary for essentially worthless options. They appear less likely to ask for a raise, assert their rights to reasonable work hours, dissent to a bad work environment.

The best way I have found for avoiding this is reducing the idea of your job into a very simple transaction, taking the view of a consultant. You have problems that need solving and will pay. I will solve those problems for pay. When seen as purely transactional, I believe the individual feels more empowered and avoids the loyalty trap.