@chillicothe: Is it avarice or obsessive completionist? Avarice implies they want to make as much money as fast as possible. Completionist implies they want to get a 100%, even if it's unfeasible. This wraps back to the initial issue with Undertale that inspired this article: players were willing to do horrible things to "get 100%" or "squeeze out as much content as possible", and the game laid bare just how unhealthy that is.
Getting 100% was alright in earlier days, when the main way to get 100% in a game was finding secrets off the beaten path that often led to 1-ups, power-ups, and hidden levels. Super Mario World, Yoshi's Island, and Donkey Kong Country 2 & 3 were all really good about this. However, when the Xbox 360 introduced achievements, getting 100% turned into doing more & more for less & less. I know people that are more worried about getting every achievement as quickly as possible than actually enjoying the game, and watching them immediately look up everything in a strategy guide rather than experimenting with a game is horrifying.
Same difference at that extreme, but I do know it's against what you're fighting for (and is worth fighting for).
Whenever the The Legend of Heroes: Trails in the Sky First Chapter games get released, the nature of the game's protagonists' roles in society (as part of a heroes for hire guild known as the Bracers Organization) gets laid bare: the fact that other bracers can pick up on at-large side-quests and do them (resulting in time limits for these missions) sends neurotics into spirals of apoplexy, demanding that versimilitude be erased.
To put it bluntly: that's what this is up against, avarice.
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