Inquest into Diana's death cost £7 million

Investigations and hearings into the death of Diana, Princess of Wales, killed in a car crash in Paris have cost nearly 7 million pounds. Princess Diana and Dodi Al Fayed, son of Mohamed Al Fayed, owner of London's Harrods, perished alongside chauffeur Henri Paul when their Mercedes slammed into a pillar in the Pont d'Alma tunnel, in Paris, on August 31, 1997.
What price do we put on their lives, and what is Mohamed Al Fayed expecting that this expenditure can justify? How many starving children would that have fed?