Viewed through one end of the lens, the two new autobiographies from the sporting legends Boris Becker and Bradley Wiggins might seem like classic tales of the downfalls of two deeply flawed heroes who then claw their way back to redemption. But viewed through the other end of the lens, we see troubling portrayals of an extremely inhumane and, at times, unsafe world of sport where talent is no saving grace, in fact it's more of a liability.