In an odd sort of way, I've always felt sorry for Tyson. He's clearly only barely able to function in society, and cannot do so on his own. He's mentally retarded, and that's not a judgement, it's an observation. He literally only has the intellect of a nine year old, or less.
He's been totally used by the people around him for his entire life. This, because he has a fist that can punch with the force of a Mack Truck.
If you are talking about boxing I must disagree with you a bit. The people who helped him on his career rescued him from thuggary and led him toward the heavyweight championship. It was when he got there and dumped all of his handlers for Don King that everything went to hell and he reverted back to thuggary and rape and assault.