I don't know if it makes sense but it worked for Jackson. Don't you think as a competitor and an NFL player, Wallace would rather be playing the game this year rather than watching it on the TV especially in the prime of his career?
It's not like Wallace didn't have any offers. He could play 1 year for us for close to 3 million (oh, the horrors). Or, he could have had job security and guaranteed money by signing a 5 year, 50 million dollar contract and he turned that down. The ball was in his court and he chose not to pursue either.
one would think, but obviously his desire to make X amount of dollars is more important to him.