I enjoyed reading all the comments in the post and was pleasantly surprised to see how similar the views of everyone here are to the consensus posted in the question. I too would personally agree with the overall results of the study. Money is one of the driving forces for us to work hard and be successful so that we can provide a comfortable, much better life for ourselves and our family. Along with that to be stuck in a deadbeat, monotonous schedule is not what an individual want to be stuck in specially if its a part of their daily routine, and so excitement and challenge from you work is very important factor too. What could come as a bonus would be working with people you like, equally hard working, who you can bounce of ideas with and will help you with a positive growth at work. Having a friend at work lines up as the perfect icing (provided it does reduce your productivity). If there is a likeliness that one of these factors don’t line up it could lead to not enjoying work as much.