Yeah! It's weird but they making lots of money here due to the demand of the crowd which is increasing every new fight. What I mean by that, is they are inviting new audience whenever there is a new fight. That's why we see more veterans boxers are doing the same thing right now. Just look at Manny Pacquiao, who is he fighting now?
One reason is, there are people who didn't able to witness some of the popular boxers before during their active days that's why exhibition matches are the only way for these people to see again these Legends fighting in the ring regardless of the event or how
sh*t the reason is why that fight was held.
Referring to Jake Paul, he can really make decent money on his future fights because there are people who want to witness his 1st lose not realizing they are just contributing to the revenue of that said match. He can still save his legacy though by fighting a caliber real boxer on his level.