Philosophy around people coming and going from positions is they are imparting knowledge as they gain and share, be it within a country or international.
Always been a 'Jack of all Trades', learn from the bottom and work your way up through the ranks, gleaning knowledge along the way. Many with degrees tend to disagree, expect to walk into the 'Top Job', often backfires not having on hand experience.
No-one can ever know too much!
This is very common now in younger generations. Degree, no experience.
Same is happening here, many have a degree, never offered opportunity into workforce.