I must disagree with you saying that all people who hold up are generally greedy, They must have other reasons such as keeping the network alive, or generally they have a target in mind. It takes great discipline and research for them to hold up that long. It's not bad to aim for higher profits in the future and if they are failing at it it will just be another lesson learn for them to use in the future investing so I can say greed is not bad at all if it benefits you in the future