Unfortunately there are a lot of people who believe government shouldn't do anything unless it is fraud-proof. The narratives around welfare and food stamp abuse make headlines for exactly this reason :(.
I think their intentions are a little more nefarious. It's not that they want e.g. a fraud-free welfare system; they fundamentally disagree with the idea of welfare and so use fraud, whether it's a legitimate issue or not, as a basis for trying to stymie or dismantle the institution.
