At least in education, individuals who take charge of their careers, become experts, leaders in professional organizations, etc. will find it necessary to change jobs as school leaders cannot allow experts on their staffs.
I’ve always found those who truly “understand” concepts are not bothered by ambiguous definitions at any level. They know we make some progress, reach our limit, then dig in again.
I'm considering charlatan as my retirement career. All I have to do is figure out the fraud that will be most lucrative as I don't want to work very hard.