A man repopulated a rare butterfly species in his backyard (2016)
Clearly a waste of time if he wasn't getting paid for it. Imagine all the other wasted efforts of time and money that other people would do if we as a society paid them well enough to have excess time and money to do these sorts of pointless non-entrepreneurial adventures. What if he put all this effort in and makes the world a better place for nothing?(Heavy satire / sarcasm)