Nothing highlights how pointless e-sports items are more than a real dollar value for a player base of all of them. The entire global GDP is as an order of magnitude roughly $100 trillion. So this $340 trillion figure is 3.4 times planetary total economic output - meaning the theoretical value of Rainbow Six cosmetics exceeds what the entire human civilisation produces in a year. Multiple times over. You'd be valuing pixelated gun attachments higher than annual agricultural output across all nations, all manufacturing, all services, everything.
I bet it appears unchallenged at some point in a court (or insurance) document though.
You could achieve a similar sum by adding balances out of thin air to random bank accounts, which is comparable to what happened here.
The valuation is based on them hypothetically selling the same quantities that the hackers gave away at their retail prices, which of course no one believes they would ever actually sell that much.
While I understand what you're saying, it's pretty clear what is meant is "$X worth at the price they currently sell for". When there's a story about an object in space made of gold worth 100s of trillians of dollars, nobody believes it would really sell for that much if we captured it and mined all the gold; because the value of gold would plummet based purely on it's existence.
But I agree with you that it would be put into a court document as "it cost us this much" for the full amount, vs the amount they were likely to ever be able to sell (and can't, now that everyone got it for free, so the value is $0)