I just had what may prove to be an insight into the behavior of two show-biz influenced Republican presidents: Reagan and Trump. They were involved in different kinds of show business and that may have been an important influence in their subsequent political demeanor.
Reagan was involved in drama of various sorts, in an earlier era. He was elected president of the Screen Actors Guild and was active in anti-communist activities vis-a-vis Hollywood. Then he became a motivational speaker for General Electric and a performer on their Death Valley Days TV show.
Trump was involved in professional wrestling - an exhibition (rather than sport) that is scenario-driven and uses feuds to hype viewer interests. Then he was a successful performer in a reality TV show The Apprentice. He was also a successful and wealthy developer of urban real estate projects.
To the extent to which each relied on his show business experiences as grounding in presenting his public persona, perhaps they learned different lessons. Reagan acted in an era when Hollywood performers kept their clothes on, and mostly enacted admirable characters.
On the other hand, many view 'reality TV' being nearly as fake and scenario-driven as wrestling. Trump performed in faux-reality show biz endeavors in which exaggeration and picking fights are rewarded. It may not have been an ideal developmental path if ones goal is to appeal to college-educated folk.
