Yes, there have been a few cases like these, but so far as I know it's not wide-spread, so "ridden with scandals" is inaccurate (so far as we know), unless you

Yes, there have been a few cases like these, but so far as I know it's not wide-spread, so "ridden with scandals" is inaccurate (so far as we know), unless you count lobbyist payments (which is scandalous in my opinion, but probably the same in most nations).