Actually they do.........or more accurately their customers do.

When we have a hull luss, FDX gets sued big time by our customers.

We have Jewelers (Debeers fo example) who ship millions plus in diamonds.
We have energy companies.......Exxon, BP etc shipping core samples from a potential oil field find........where minutes count before a billion dollar contract is signed.

We ship Million dollar (Multi-million actually) Race horses from SDF to DXB or to AKL and SYD. One load of Thorougbred Race horses say 15-20 could be worth upwards of a billion.

We also ship race cars...........Could you imagine if we lost the Ferrari Race car before a big race? like the Indy 500 or the Grand Prix?

Granted it ain't a massive loss of human life......except for the Crewmembers,
but in legal terms FedEx is on the hook for a LOT of money.