Your message is so rambling and lacking in punctuation, good grammar, and proper spelling that I have no idea what point(s) you are trying to make. I have no idea why you referenced Aaron Swartz, John McCain, or Granny D.
But perhaps it's just me.
There is an edit button available if you want to revise your post. Or you can ignore this if you choose.
Finding those who have gone for their non-financial reward is reasonably achievable. Locating former employees whose name is John Smith and who live out of their cars is not so doable. Unfortunately, the IRS and SSA discontinued a great tool -- the mail forwarding service. They had no need to discontinue. Just charge more!
Did the custodian say the correction MUST be made? Or is it their suggested course of action?
How much would the lost earnings be? Is it a small price to pay should the plan ever get investigated? Hey, DOL, look. We goofed in favor of an HCE/key employee, but made up for it.