Conservative themes in narrative media

my main question im using for my Junior theme is, "Why are there conservative themes in action(adventure) films today?" but as i researched this topic i started to look at all media that convey stories, and i have noticed that across the board in film, tv, comic books, novels and even many games, conservative ideology drives the plot. By looking at all these different media, i have finally come to a definitive, yet mildly vague, answer to my question: It's much easier to employ conservative themes. its as simple as that; film and books and tv and games all use themes of conservative ideology such as the idea of self empowerment in forms of vigilante justice as well as the thought that through such actions their characters can restore "balance" or preserve the culture in some way (to impede change). Even those that have plot that are all about change, its all about reverting back to an older state, before it was changed by some power to be what it is today.