In my opinion, it is a combination of several factors. First, culture does have an impact: movies, literature, and internet platforms give more visibility to different aspects of human relationships. For example, it is now increasingly common to find online resources where this topic is blatantly shown. I often visit https://femdom-pov.me/brattykiki-religious-destruction/ , in search of adult videos where beautiful girls show their dominance over men and do it beautifully, with all their eroticism. on this platform is a huge library of such video clips of this genre and not only. I think fans of such movies will be interesting.
It seems to me that there is no unambiguous answer here. Some would say that it is the influence of culture, others would say that it is the natural development of relationships. Roles have always changed over time. Now there is simply more freedom in choosing what kind of relationship to build. If someone is happy with this format, why not? The main thing is that it should be mutual and comfortable for both partners.