Wait a minute, are you complaining that too much money is spend on ham sandwiches? Your counterexample suggests that this money should be better spent on another war on the far side on the planet?
I'm saying that between existing welfare, existing SS fraud, and other transfer payment programs we are already spending enough that trading that for a mincome program might cost less than you think. On top of that, if the removal of disincentives to make incremental income above the mincome level are removed actually works, the net cost will be even smaller.