The exact flow of all money (velocity) in the world cannot be calculated perfectly.
Its not only money but also wealth. There are much wealth, even hidden wealth are much more protected.
Its not about how much money we have, but how much we have used them for a good purpose. Donating $1M to the charity institution would obviously preferable than buying car worth that $1M.
No matter how much effort we have to increase our money, we will never be satisfied.

“Money is numbers and numbers never end. If it takes money to be happy, your search for happiness will never end.”
― Bob Marley