It's a matter of busines vs. ethics.
Let's ask the hypothetical question and assume you're Coach Urban Meyer. Your success is predicated on your ability to win recruits and hence win games. We all know the recruiting arena is a battlefield. The strongest survive (and thrive).
Do you take advantage of someone elses misfortune (in this case: Tennessee's debt problem) in order to bolster your own program (sign Vonn Bell)? Do you make the pitch to the student and the parents that OSU is better because the programs finances are better?
Do you think this type of recruiting pitch would be perceived as OK by the media and by the public at large?
Do you think any recruit and his family (not just Vonn Bell) would be persuaded by this argument?