If they did this, it wouldn't have to be an "infiltrates" story. It can be more a "beware, government can over-reach" as we have seen from Ross previously, and people like Hayward more recently. It is a pretty standard theme.
The problem with making Ross into the Power Broker is that Ross has, to my understanding, always been a patriot (if a misguided, overzealous one). He's not been portrayed as the sort to take his program to create superior military forces out into another country, and then sell those powers. Which is not to say that it cannot be done, but to be cogent, it'd need a lot of explaining. I don't think "the world turned upside down" is in and of itself is sufficient to the task. We shall see.
In the comics, Power Broker is more an icon of corporate malfeasance than government, but they could do something different in the MCU.