I know what everyone else knows. That the Bidwill's are not generationally wealthy. They have no major businesses outside the Cards. They are not shipping magnates or grocery chain owners that bought into the Cards.
Their shady grandfather bought the Cards with a handshake for $5000 cash and if not for that the Bidwills would be living down the road from you and working a normal mundane job.
Bill Jr as only ever worked for the the Cardinals. Patrick Bidwill is a former used car dealership owner that seems to do nothing in Miami. Tim Bidwill is a planning lawyer I believe who has also worked for the Cards and Nicole does charity and PR work for the Cards.
The Cardinals give a bunch of very ordinary people access to Senators, Governers, Pop Stars and the great and wealthy of Arizona. Without it they are nobodies.