I think everyone is somewhat skeptical that these things go on everywhere, but Cal takes a lot of heat because of the vacated FF appearances and quite frankly his career is a little sketchy. I mean, what other coach has taken middling programs like Memphis and UMass and suddenly had them recruiting like elite schools? UMass has never recovered, and Memphis has Will Barton, but I think he was a Cal recruit anyway.
All things being equal, what makes a kid suddenly decide Memphis is the place to be when he could go to UNC, Duke, Syracuse, UCLA, Michigan, UK - pretty much anywhere else. Especially if you're implying they all do the same things. Hell, Duke will get your parents cushy jobs, so it must be something more. Is Cal really that much more likable? His street agents are just better connected (i.e. WWW)?
It's a level playing field now because he has the UK brand, and a reputation for delivering one-and-done type players to the NBA - but I would be surprised if there weren't big payments mixed in somehow.