Technically we pay for all the shit that makes living on earth less brutal than what the monke has to put up with on a daily basis
Money tends to be less painful than getting mauled by a predator trying to scavenge food
Also we have beer! No seriously archeological evidence suggests beer was the main selling point of settled civilization for a lot of groups, so much so that it was the money until someone in turkey figured out you could use weird metal disks for that instead.