Too early to tell. From my experience with data integrity issues first make the numbers manageable by linking data to another database (cross checking). If possible do a mass update then and what remains a red flag handle manually. This is a simplified version though, can be much more complicated.
If some data is not in a database they can connect to or even worse is on paper, that can make it very labor intensive.
I have regularly coordinated and fixed data integrity issues myself. Worked for a large company that was often audited.
Probably because it’s not that big a deal and would cost far more to fix than it cost us in fraud. The only problem free system is a nonexistent system. WTF should I care that some database thinks someone is as old as our nation. Who knows, it might possibly be true.
Of course - they need to fix this. You need to know exactly what your tax money is used for. This shouldn't be a right/left conversation.
Data integrity should be in order. If not fix it - or have at least an assessment and a long term plan.
All the left does is using ad hominem arguments. If you ever want to get rid of conservatives - this is not the way.