I suspect it’s to do with the money involved. That game developer doing months of crunch is likely already underpaid (compared with a similarly skilled and experienced dev working in another industry) when one only considers their contracted working hours. The person working similar crunch hours in finance is likely making tens of thousands more. For better or worse people tend to think very little of bankers and the prevailing attitude is that they’re making too much, instead of the more sensible approach that others are paid too little.