The reason that you will never see a truely busty woman in the main stream is as follows. But first a fast example to make this easier to explain.
Ants. They get food. They build nests. The procreate. They protect themselves.
Sound simplistic but then again it is. And in fact right at the base of the human condition this is what we do too.
So then. if you can accpet this and I hope you can cause it is a fact then we can move on.
The part that stops the mainstreaming is the procreation part. In the main the most obviously visible part of a woman, especially from a distance, is the bust. Therefore early identification of a potential mate is a big plus at the base level. This being that case busty women are seen to be very dangerous rivals to non busty women in the main. This being the case a busty woman in the mainstream entertainment area seen by lots of peeps would be an even huger potential threat. Now I am not saying that all this is conscious thought. But it is there. So. If the potential threat exists then there is antagonism. Antagonism manifests itself as not watching the program which means rating are down which means the advertising dollar dries up which mean no profit which means not good business idea. And voila we have no job.
It works in a similar way with good looking guys with great buns and bods too.
Now I know that peeps should not be shallow but it is hard to fight 100,000's of years of evolution after all. Big breasts also tend to indicate fitness which indicates health which in turn indicates a greater degree of being able to procreate. Hence why a lot of peeps look for good looking partners cause in the main they are considered to be fitter thusly healthier thusly better able to procreate.
I mean it takes a lot to stop a woman from following the nesting and family making drives. And that is as it should be too cause that is the natural process. Heavan help us if it did not exist.
So in essence you can try to fight hard coded instinctive processed but you will never win. The best you can do is keep them at bay.
And i did not just think all this stuff up either. The way I work is as say for example a large cauldron. Life keeps tossing stuff in and it mixes around and at times things combine and recombine and float to the surface and voila yet another theory or idea or what-have-you.