There are errors in the way you are looking at this.

Does Microsloth security ever do anything against Billy Gates?

Does The US inc. security ever do anything against its share holders?

It isn't that creeping corruption, it is that corruption was the basis of the design.
From the get go, the United States Constitution was written behind closed doors and then forced through. To which a few very smart people then pushed through the bill of rights.

When Lincoln came along and destroyed the country
The globalists created the entity known as The US inc.
They own it. Lock, stock and barrel.

The Infernal Revolting Syndicate is a corporation formed outside The US.
Why does a foreign corporation have any sway in our country? (oh right, we do not have a country)

So, the point of this is that we aren't looking at corruption slowly taking over.
We are looking at the most corrupt creating a structure of corruption that attract even more corruption.

Yes, T.H.E.Y. are above the law. Or, we should say, the law is beneath them.