Well, let's just blame all the law firms with TV commercials saying that you need to call in immediately to get disability from the federal government and nearly anyone can qualify. Let's blame the scam-artist medical practices that the lawyers send the applicants to, and will fraudulently state in writing that the applicant suffers from a host of disabling medical conditions.
Sounds like you simply want to blame everything on the overloaded, hard-working government employees. How come you pick on these overloaded public servants who don't even make $50K per year? But you rather do this then hold the applicants who knowingly are submitting false information responsible.