It doesn't. But there have been rumors of Seagal being connected to the Mob for a number of years. Considering the vast ego of the man, it is likely he's highly ambitious. It seems doubtful that his successes have been the result of his talent, since he has none. In that context, the rumors make sense.
I agree with you, but the lack of talent did not stop other people from making money: witness Sandler, who is routinely paid $30M per movie, and Eminem.