The idea that pay is the only reward society can give to incentivise effort is a little myopic.
Most people also get an element of respect from their work. Both self-respect and the respect of the community.
In any traditional Irish town, the priest, the doctor and the teacher were the best respected people. That was their reward for their study and effort.
The publican, the auctioneer, the shop keeper, the undertaker and some of the larger farmers usually had a bigger income, that was their reward for their energy and enterprise.