You can't build integrity in something/someone you can't control. All of us hope to live in utopia, but that is just not the world we live in. Your only method of control is to stop recruiting the kid and move on to someone else.When I take a step back I see this as THE problem - and not just with sports. We should be building integrity into every aspect of life instead of creating opportunities for hypocrisy and corruption.
Just because you are allowed to do something does not mean that you should.