Fixing it in production means it could have effected your production users who in turn couldn't do whatever it is that they do to actually make or give you mone

Fixing it in production means it could have effected your production users who in turn couldn't do whatever it is that they do to actually make or give you money with an unknown but potentially significant effect on your bottom line. It also involves more and oft more senior people who are paid more as it must be triaged, assigned, and managed. Whilst it is unlikely that this falls exactly neatly on different orders of magnitude eg exactly 10 and 100x more if its taken to mean that its substantially and very substantially more expensive this seems fine.