A sad thing about success is that in addition to it breeding jealousy, it also breeds inevitable sale, which also breeds gossip (which horse people are especially good at and enjoy).
It is a truth universally acknowledged that a really successful horse is for sale at the right price; this is after all a business, but with desperate buyers demanding ready-made success at any price (it being boring and difficult to train your own) for their vaguely talented offspring/pet professional/or patriotic pride. Whilst true that you cannot win without the right horse the alacrity with which people can throw their money at success without thought or care to how it looks to others remains extraordinary. Actually they do not care as when you win all that is forgotten and no-one else cares either, and as long as everyone knows how much you spent and where you got it, heaven help the judge who marks you down.
Post Championship fervour will no doubt result in the socialistic redistribution of talent and wealth across the globe. And much fun for the rumour mongers.