NudeRaider -- I see it more like a double edged sword. (Disclaimer: I only have a very basic understanding of the American voting / delegates system) As you say its (probably intended) side effect is that those in power stay in power but it also works against a legitimate concern: Some very active outsider group makes disproportional effort to target specific groups and gets overwhelming support from them which makes them non-representativ for all voters.
Mini Moose 2707 -- (She also just happened to be the co-chair of Hillary's 2008 presidential campaign against Obama, but is surely unbiased.)
Mini Moose 2707 -- Basically, they can pretend that what the people think actually matters but in almost all cases, really, they actually get to pick.
Mini Moose 2707 -- They have superdelegates to "make sure that party leaders and elected officials don’t have to be in a position where they are running against grassroots activists" LMAO