We tend to exaggerate our importance to our workplaces. The longer someone has been at a job, the more inclined they are to think they’re irreplaceable. In actuality, after I leave my job, and you leave yours, things will be just fine.
I realize that because I’ve been thinking about how many times my co-workers mention the three people who have left for other jobs or retired in the last couple of years. The harsh reality of it is hardly ever. The saying “Gone, but not forgotten,” doesn’t jive with my experience.