Out of curiosity, has a manager ever been charged for saying "you don't get the decisions at the big grounds"?
Because I think I must have heard that said 3 million times, and it is rather explicitly questioning the integrity, or certainly no less so than Wenger's comments.
I changed the wording to 'bias', as that covers more possibilities. Any abuse of power is a corruption in my book.
synonyms for verb corrupt: alter, falsify, manipulate, tamper with, interfere with, tinker with, doctor, distort
How does a blatant cheat like Mike Riley get to be in charge of all the refs?
It can also work the other way, where a ref who is thought to be biased in favour of a certain club will overcompensate by showing a slight bias against them in his decisions.
I also think this 'over-compensation' mentality can come into play in other situations too. For example, I reckon Anthony Taylor may have given Chelsea their pelanty because he feared if he didn't it would look like he'd been scared off by Wenger's comments after the West Brom game.