A fair point to consider, although how does Tom Brady go about proving loss of endorsement deals and business prospects?
In other words, what companies have dropped him, etc? No matter what happens, no company in their right mind is going to deny Brady the opportunity to help sling their product. To date, I don't believe anyone has even brought it up.
He's still a 4x SB winning QB, one of the most well-known athletes in the entire world, and part of arguably the biggest power couple that there is. This isn't exactly a "Michael Vick" or "Jerod from Subway" type of situation, where companies are publicly pulling out of their deals.
My concern is that aspect may be somewhat difficult to prove in court, as good as it sounds in theory. Then again, I suppose it only takes one deal.