I don't think what but whoI think a sales personWhen you look at...

I don't think what but who
I think a sales person
When you look at all the pyramids temples churches and other things made from stone someone sold that idea.
When you look at everything we do that is not subsistence it is all the result of someone selling an idea or product.
It has been a marketer's dream, certainly a good money maker plus it keeps the peasants in check