I have for while wondered how have many of these media productions in general come so inefficient. Both in video and gaming. Massive teams, massive expenditures

I have for while wondered how have many of these media productions in general come so inefficient. Both in video and gaming. Massive teams, massive expenditures and content is well mediocre or just outright bad or critically flawed... How come more of stuff is not made more efficiently, with all the computers and such?