We all meandered through our schooling haphazard; so, to God be thanks,
I can agree with the OP, but only half-way. I'm not a particular fan of separating culture from who we are at our core - that just isn't true. We don't look at pack animals as what they could have been or would have done outside of their packs. Why look at a human outside of its society? We create much of our own environment, yes, but we also adapt to it. Culture, civilization, abstract thinking - none of these things are here because we wanted them. You can't want something the outcome of which you do not know. They're here because we needed them.
From that regard, our sexual behaviours are very much proportional to our environment, be it internal or external, physical or chemical. The best media can ever do is play up these stimuli. It's very easy to say that something is superficial, but once you break it down to the most basic level, there has to be an underlying biological cause for it, because it is all we are - hoards of different cells existing in a symbiotic relationship and driven by reproductive instinct to pass on our genes along with those of a best mate.
If you dig far enough, is any of what we perceive as superficial really is so?
...it's easy, without too much fooling, to pass for cultured in our ranks. 