In my corner of the 11F world, going to WIC has absolutely zero to do with an individual's career and everything to do with selecting the right individual to lead a squadron's training program for that squadron to be thee most lethal squadron in the world. The 11F WIC is way too difficult to pick someone based on anything else...they'll washout.
The MAF has always struck me as career focused instead of job focused, but I guess when you spend a bunch of time droning from point A to point B for hours on end you run out of approach plates and 11-217 to cover and you end up talking about how to get promoted? All I know is that no one talks about this career stuff in the fighter squadrons I've been in for two reasons: 1) there are too many tactical things to learn to have time to talk about someone's career (this is often to a fault) and B) you will be ridiculed for talking about this career stuff in the fighter squadron common areas because of item #1 (again often times to the detriment of careers, but few care).
WIC grads around me do the typical FS WO job followed by either teaching at Nellis or Wing Weapons. After that, it's either off to IDE/staff, get offered a 365 and go guard/reserve, or get out altogether and do something completely unrelated. I have never seen any 11F patch in my community ever be an aide/Exec at any level unless they were a graduated sq/cc, and that's to be a 4-star's Exec (the right guy being groomed to be a GO). The guys in my community who are the aides/execs are the non-patch wearers, and they are often the ones who care more about their career moves than they would ever admit (somethings are the same in every community in the USAF).