When an obvious scorecard robbery takes place, who's doing the paying?

[Build That Wall]

Bob Arum, Don King, CJ Ross, Tony Paolilo, Gale Van Hoy, Euginia Williams, and all the judges from Lara vs Williams fight

[Luilun]

close fights are one thing, but when canelo won on one of the judge's score cards against mayweather, there was clearly some shadiness going on. So my question is: Who's the most likely culprit in a fix?
I know people like arum are slime, but this seems like too big of a risk these days for a major promoter to be in on to be worth it. Everything we do is documented now. And if a major promoter gets caught once, their whole career tanks. So does the fix-organizing get sub-contracted out to a major bookie?
Anyway, just curious.

ellerbee probably gave a few brown bags to the judges before the madaina fight. Arum probably gave the judges the same during castillo 1 and 2 just to asure floyd won both even though the second fight was floyd 7 rounds to 5 but castillo won 8 rounds in that first fight if you give floyd 5 rounds thats being nice