I am just saying that it eventually is paid by the end user, regardless of the bureaucratic steps in between. We can try and figure out who is directly paying them but I feel like that detail is unnecessary to my overall point.

US Consumers pay in fungible dollars, and so if your company paid for three pizzas eaten by an AWS team, and I paid for 1 ounce of Maersk fuel oil, and our Starbucks venti latte purchases paid to rethatch Juan Valdez's hut, who can even trace the serial numbers on our $1 bills?