Gross incompetence is a good reason to fire an employee, or not to hire an applicant in the first place. If an employee can’t do the job the person was hired to do, that person needs to make way for someone who can. If an applicant can’t demonstrate the necessary skills, that person probably is not the right person for the job.
Famed social scientist James Q. Wilson died just shy of a year ago. One of his greatest contributions to the world he left behind is the “broken windows” theory of law enforcement: the idea that communities should concentrate on the small breakdowns in civil order and correct them before they escalate into worse problems.