Doesn't bring you back the art either. And if the service provider only has a few million bucks in stockl, it doesn't even cover the damage.
Plus, how irresponsible is the museum not to get a replacement system and then hold the service provider responsible for the extra costs? Instead, they play with fortune ("Nothing's gonna happen, nothing's gonna happen.").
In any case, there's also the possibility that the artwork was stolen already for someone - meaning, some rich guy/gal giving the money for the operation. In this case, the paintings wouldn't need to be sold, but would be hanging already in someones private room somewhere in this world. Perhaps a bit too much Hollywood, but why not...?