Again, Premier League is a catch all for various interested entities, as there is a character limit on poll questions and “is football corrupt” is far too broad a question (that would get near 100% affirming responses, thus isn’t a particularly useful poll).
I have written a few lengthy posts over the last few days regarding how corruption usually actually develops and sustains—it is usually a much looser, but still interconnected network of bad decisions that then gain so much momentum that it becomes systematic and the various people involved (often not even aware of other people also trapped in cycles of poor decisions contributing to the overall corruption) see no way out, so they just continue it. And, over time, it becomes the norm, it builds further as new people are recruited in to the scheme as a matter of necessity, until it usually finally collapses under the sheer weight of the fraud and is exposed.