I guess it all boils down to what abusing the system means to each person. Take myself for example. I filed a VA rating. They gave me a percentage. I was turned on to a lawyer who helps with claims. They refiled my stuff and I was bumped up 50% just based on how they worded my filing and the doctors used to evaluate my conditions. My medical record is still my medical record. The lawyers just know what words to use, so yeah its a game...
My wife performs psychological evaluations on veterans to qualify them for military benefits. Of the hundreds of soldiers she's met with, she said only a handful were clearly gaming the system. Most of them do carry some level of PTSD around with them. Anecdotally, of the family, friends and acquaintances I know that went into the military, all of them came home from basic as different people than when they left. Flat out, joining the US armed forces changes people. You may argue that many of them change for the better, and in some cases, that might be true. But in my experience, the changes aren't typically positive. And the PTSD, even in soldiers that never saw live combat, is very real.
I would never besmirch you or anyone else that chose a path of service. But I sure as hell don't want my kids to do it. It's a great way to get F'ed up in a hurry.