Most of the time, it feels a little bit embarrassing, but the cost is just a very small part of your regular salary and overall operating cost. If your boss hits you with this, they don't have the correct perspective and priorities.
My record is $20k and it raised some eyebrows. But it was not really a mistake, just a sub-optimal backfill.
The data was filling a need for making appropriate business decisions, and compared to all the money lost by business developers making investments on a hunch, this was a very small bump in the road.