Pfff.
First, Democrats are the slimy bastards who are just as evil and powermongering as Republicans, but put on a populist face, while the Republicans nowadays have the balls to be openly neofascistic and dare anyone to point it up. You're thinking commies.
Second, no proper commie gives a **** about grades. They're an illusion, an arbitrary, useless mark made by a bureaucratic system in order to trick stupid people into following the illusion of some higher award, and any proper communist would recognize that they are actually necessary or, indeed, real. They're quite a lot like money in that sense, though the analogy doesn't extend to the context of this anecdote.
Third, you don't find it a little childish to draw a parallel from, say, a working-class guy who has a daybreak-to-midnight job killing himself at the factory drawing minimum wage to feed his half-dozen kids to some dumb chick who parties all day and then complains about grades? She doesn't obviously care, she's the good commie. She's learned the important lesson, that you only work for rewards that are real, and slaving away just because you're "supposed to" isn't reason good enough. But there are poor people who do need money. Quite a ****ing lot of them. You don't ****ing well party all night if you're starving to death, or dying of tuberculosis because your house is just a few walls and a plywood roof and you can't afford proper medical care. You'd damn well work if you could, because the alternative is a gruesome, painful death.
Oh, yes, they're all so ****ing lazy, rather have a lifespan of 40 years the last 20 of which are a living hell than get some goddamn cushy desk job pulling five or six ****ing figures a year.
Jesus, you damned rich kids don't get out much, do you?