noun

• (derogatory) The overwhelming desire or urge to advance one's own career or social status, usually at the expense of other personal interests, social growth, or ethics.
  "More than most of his flag officer peers, he understood how to navigate Washington politics and news media, helping him rise through the ranks and obtain resources he needed, although fellow Army leaders often resented what they saw as a grasping careerism."
• (chiefly US) The perception that being a member of the military is a career, rather than an obligation to serve one's country.
  "In addition, military aviators' concerns about careerism as well as their lack of professionalism and personality clashes added to the friction against program."