The most popular show in 2010s was Game of Thrones which is all about people vying for power. Same for some other shows like House of Cards and Breaking Bad.

Could GOT have been a psyop to condition to people into being power hungry freaks? Or was its popularity in part because people already had totalitarian instincts?

It's a good thing that one of the most popular shows right now the Mandalorian is actually pro freedom. Probably inadvertently since it was inspired by Westerns and therefore carried some of their themes. But some of the kids watching it now may just end up being freedom friendly people down the road.