And it's well-known celebrity speakers like Becks and BoJo are compensated very highly for speaking at events organised by entities that have nothing to gain from bribing them. This doesn't help those entities pay off their local regulators in any way; it's simply the market price they're willing to pay for the actual speech.

I'm well aware of Boris' journalistic career; I've even read some of his waffle. You share his flair for insinuation and missing the point so I wish you good luck with your own campaign to be PM ;-)