I think everyone should do his best work or not bother working. We call this genre of "rip offs" exploitation films. Not sexually of course, in this case, but exploiting concepts and ideas that have already been shown to attract interest and therefore money. Generally speaking, I don't find this a very attractive or noble motivation. If this is the best work these people can do then I thank them for their efforts, thank them for allowing me to be a part of it, and hope they are not just into it for the money. I also hope for them that they can do better in the future.