Top fighters and World Champions going broke and bankrupt while they are still active participants within the sport is nothing to celebrate.

That's part of the call for Boxing to be banned in many parts of the world.
The sportsmen leave the sport with broken bodies and damaged minds, and not even any money to show for it.
About 99% of the approximate 19 thousand licensed pro boxers worldwide will never see a big payday. Ham-and-egger extra weekend money while working a day-job.
Of the 1% that see the huge paydays, very, very few keep any of it nor manage to be solvent after their career is over.

Hey, it's their money, they can spend it however the f*<k they want as they earned it with their sweat, sacrifice, and pain. But this sport is f*<ked, wouldn't you agree?