Said tongue in cheek I know, but current headlines aside, actual corruption in the day to day bureaucracy of both federal and state government in the U.S. is vanishingly rare, so much so that it makes headlines when found. The federal government does something like 75,000 purchase solicitations a year, for example, and at most there are a small handful where something improper turned up. In several years working in this area myself the only reasonable bid protests I saw were the result of shoddy work on the part of a federal employee rather than corruption. My understanding from friends who run businesses in Mexico is that it's a much different story there permeating to every level of the society, from running a business to getting a speeding ticket.
In the U.S., the Koch's did certainly donate half a million to Ryan and friends days after their tax bill passed, so at the national policy level there's clearly quid pro quo corruption going on and that's a horrible thing. At least it hasn't seeped down to main street yet, by and large, although I guess it might just be a matter of time.