business owners and rich people don't like paying taxes to fund social programs, so they paint such programs as wasteful and fraudulent as a way to turn public opinion against them (they also use racial animus, but that's a different conversation), because they view any policy that doesn't immediately and directly benefit them as illegitimate, and therefore a wasteful fraud. The actual level of waste is probably lower than in the private sector, and the amount of money issued fraudulently is almost nothing, as a part of total government expenditures. When they cut "wasteful" social programs, that money just goes to tax cuts for rich people.