That doesn't make sense. If it's so lucrative that people start fighting to work on that day, even if it's a holiday they'd usually spend with family, then it's

That doesn't make sense. If it's so lucrative that people start fighting to work on that day, even if it's a holiday they'd usually spend with family, then it's probably overpaid. You want to have the right balance so that some will agree to work during those days, but not so much that people start fighting over it. It's also worth noting that not everyone celebrates these holidays, so for some, that's just a normal day like any other and they wouldn't mind it as much, but appreciate the slight bonus.