It may be my bias, but I've met plenty of people trained in economics that are really not particularly motivated by money, but rather by doing things they find

It may be my bias, but I've met plenty of people trained in economics that are really not particularly motivated by money, but rather by doing things they find fun and interesting. One of them recently was sailing around BC looking for new sea to summit ascents. There's essentially no hope that their activities will yield them any money.