I agree with you that there technically is. I just highly doubt anyone ever does something like that. Izzo was blasted for reporting a recruiting violation regarding Chris Webber and Minnesota when he was still an assistant. Something like Minnesota providing him with special seating during his visit there, which was technically an NCAA violation. Criticized for being petty, and ratting out a 17 year old kid for a recruiting violation. I actually think the story goes that Jud told Tom to bury the pictures and never let them see the light of day, because he knew it would hurt Izzo more than Webber. I'm guessing Jud knew you don't turn kids in for recruiting violations. My guess is the only time you see that is when the violation was by another program, and you aren't so much getting the kid in trouble, as getting the rival program in trouble.
The kid took a ton of visits. He burned through his 5 officials (and Indiana wasn't even on that short list, IIRC, I think it was like MSU, Texas, Creighton, NC State, and ?). Then after that, out of nowhere he visits DePaul, then Oregon, then finally Louisville and commits on the spot. I highly doubt any of those schools, if not others, weren't offered the MSU/IU package, or the Louisville package, and stayed silent.
It does seem like some sort of violation, but my guess is standard practice is to walk away, because all you are doing otherwise is punishing a 17 year old who has trusted the wrong people.