The ones that really get me are the way they show execs at companies. The "look, this character is so bad ass at being an exec!". They always come off as so unrealistic and cringy.
I've swam in that ocean, and that's not how that shit works. Engineering too. In reality, it's always a team of engineers that get something done... It is NEVER some rich smart guy inventing stuff on his or her own in their super fancy workshop.
Tendency to want to get in the weeds and do the work. The real job of an exec is managing people, and anything that distracts from that make the company worse.
For example, I knew a founder who skipped a meeting with potential investors because there was a bug he was figuring out. He fixed the problem, and he did it better than any other employees could have, but that's not where he was needed.
And subordinates rarely balk at obeying illegal orders - and if they do they fold when there's a threat of firing or a vague offer of compensation, as if either would instantly persuade a person to risk prison.