What does it even mean to add $6.1 bn of value? It's not as if the alternative was to put $6.1 bn in a heap and burn it. They've included staff - would they all

What does it even mean to add $6.1 bn of value? It's not as if the alternative was to put $6.1 bn in a heap and burn it. They've included staff - would they all have been unemployed otherwise? There's lots of data but no meaning here. What, in this case, is "economic value"?