I don't think he is any better
But king made his money off fighters and bookies. The UFC is global. Word gets out and not only the whole organization is done but they are looking at fines up the ass and criminal charges. For all the hype, Conor doesn't affect their pocketbook enough to take the risk IMO.
Plus I think it is more likely a scenario you would approach Aldo, a guy who has been outspoken about not caring if people use roids to cheat and has complained 3x about pay. You offer him several million to drop the first fight and let him get his belt back in the second and you have 2 of the biggest PPVs ever. I could envision a scenario like that. I don't think they would risk it on Poirer where it means nothing if Aldo beats him into a coma. If we are picking hypotheticals in which they might do something like that.
I know what you mean but EliteXC got shut down because they paid Seth to stand and trade with Kimbo Slice and Shannon Ritch was involved in a scandal. I guarantee there are a LOT more that haven't been caught. The UFC is a powerful org and can pay someone to keep their mouth shut is all I am saying. Maybe on the risky fights the money under the table with a wink and a nod happen.