IMHO, and admitting I couldn't be bothered to wade through years of history to find web and newspaper references, you are not exactly operating in a "free" market. Not anyone can enter the market as a supplier, even if you ignore the massive capital required, for reasons of limited resources and, mainly, because of the govt. and their puppet "regulator". So the competition is very, very limited, and kept that way.
I suspect price-fixing on an unheard-of scale in the industry. I also suspect that , if any of it comes out at any time, the "Network Deal" will make the "Arms Deal" look like small change. Superprofits such as those made by your company are not possible in a "free" market.