You would think that they would. But then again if you're a high school player ranked like 40th or something and Arizona State offers you 10k then Kansas offers you nothing, why go play for Kansas when you have free money to go to Arizona State? Especially when you've been told these payments get delivered to guys like you every single year and rarely is there a situation that gets them in trouble. We've heard for years that even the bench guys get favors, one way or another. I just can't bring myself to believe that Kansas, Duke, Kentucky, etc. are able to get the elite because of the names on their jersey.
And I have no proof of anybody cheating. It was pretty well known though during my time at Kansas as a student athlete that the basketball team got special favors. I think the main reason why most of us have no proof or links of any of this is because it's very much a don't ask don't tell situation when the exchanges happen.
Lastly, I don't even think this dirty recruiting thing is even going on with the head coaches like Self, Cal, K, etc. IMO, they are more likely to just allow it/be ok with it because they understand that's how their team gets built. It sounds like it's a bigger issue with the donors, agents and shoe companies.