He is fortunate to still be able to take advantage of the opportunity of making some money through fighting.
This is a good fight that he can win. Francis made so much money from just his two fights even though he lost, shows that there is enough money to be made from boxing.
Tyson is doing the fight for both money and ego.
I adore how Mike Tyson is doing all in his power to resurrect his former self, and even at his advanced age, the man still has some moves. And the reason the man is receiving inspiration is due to the benefit of earning that kind of money. Since Mike Tyson last fought, he has been training again and is determined to win at all costs. This match will be well-attended because fans from all over the world will be watching, and you can only image how much money many will make from simply betting on it. Boxing as money receiving those blows are not for free. And even if any of them should lose they will still make there money. I hope that ego does not take over him during the match if not it won't end well for him. But if it was for the money then he needs it. Because everyone needs money.
Mike Tyson himself is a popular name in boxing, so no doubt he can attract boxing fans to watch this fight. A lot are excited to see him again inside the ring. Though his age may not favour this intense fight, but if he knows what he's getting into, he knows how to prepare for this upcoming fight. Paul is much much younger but let us see how he will perform in front of the likes of Tyson.
Sure, money may be the motivating factor for Tyson but I believe, it is also combination of his pride. We don't know the rules for this exhibition fight. But they can easily favour Tyson here. Let us see how this will pan out. But so far, Jake Paul is the favourite on this match.
I'm not really sure what you mean by pride, or it could be that he wanted to give Jake Paul a lesson here as obviously, even at his age, he is the professional boxer here and so he want to teach this exhibition fighters?
But there is also the health concern for Mike Tyson, he is almost 60 years old, we don't want something bad to happen to him inside the ring. Maybe he can still box, but how many rounds he has inside of him?