I've seen many people justify this style of play by using the argument that they don't want to waste hours. They're not likely to be convinced otherwise by someone else. Eventually, some learn that doubling up or more early in a large tournament, while better than not doing so, isn't nearly as important as they think. When there are 5 million or more chips in play, you're probably going to need a few hundred thousand to place highly. So having say 3K early instead of 1K is a pretty small head start.