Think what you're overlooking here is the influence aspect that is being manipulated through the shoe/apparel companies, AAU affiliations, handlers and street agents. These folks are seeing to it that only certain college programs - the ones they choose to want to succeed the most because they stand to benefit the most if the top players go there - even get involved on the short list for some of the best talent.
That alone eliminates a lot of programs from getting a sniff to even try to recruit some of the very best talent the "clean" way, on the up and up (i.e. without paying for them). The shoe/apparel companies in many cases are the source of the money. Not always boosters; especially in basketball.
That's what the FBI needs to smash through this investigation. Break the system of corruption that has been used to continually feed top players to the select group of schools that the perpetrators have identified as willing to play this type of recruiting game. Often times using cash provided by 3rd parties whose best interests are served only if the bast players go to schools they prefer to be affiliated with. The $$$$ is used to seal the deal.
The schools that use this type of recruiting pipeline and their coaches are willing participants and they benefit greatly from it in terms of the talent that is steered to them, at the expense of other programs that are put at a competitive disadvantage. See the 5* Bowen kid just falling into Petino's lap out of the blue as a prime example.