it's a pretty simple equation, observation influences perception. Influences, but doesn't necessarily
dictate.
people are very adaptable, that's part of our evolutionary biology. which is to say that we get used to things very easily.
it's the chicken in the egg scenario when it comes to violence. society is violent, so we have violent media which exposes people to more violence, ad infititum. substitute sex, anything, you'd get the same results.
we all know sex sells. media and advertisements shape people into the forms they express. not everyone becomes that way, but enough people are subconsciously conditioned that some of them do- just enough to keep it growing or rising.
also posting the way that you (and women in general acting like porn stars) do could lead men to that conclusion. I'm not saying it's bad or wrong, just what it is.