There's a reason there's Londongrad.
UK is probably one of the most corrupt countries in the western world. This came to the fore around brexit. There's so much corruption lingering on of 'jolly fine chaps' doing what 'jolly fine chaps' do, i.e. have a word with a friend, or a friend of a friend and whoopee, more cash. Think Greensill. If it were in e.g. France, Cameron would be in jail. Instead, he's been made a Lord.