There is also the fact that for some careers there is no intermediate state between success and failure -- no "not being promoted", only continual success or a

There is also the fact that for some careers there is no intermediate state between success and failure -- no "not being promoted", only continual success or a lack of a job (recruiting and finance spring to mind). In those careers where there is in fact an intermediate state, it can feel as though it is very narrow and difficult to stay in. While the parent getting more pay may not really be important to a child, their long-term job security could prove to be essential.