Viktyr made a good argument for why it's inefficient to worry over minimal losses when attempting to fix those losses would result in only greater loss in of itself.If you have one cheater in the system then it's worth doing something about. Are you saying that if only 10 percent are lazy moochers, then it's okay that they are....but if it were 70 percent you would feel different? Whatever percentage of cheating in the welfare there is.....it affects the rest of us , not just the working class but the deserving welfare recipients as well. The percentage has nothing to do with whether it is right or not.
As you also mentioned "With no idea how much fraud there is out there, you can't make that kind of educated assumption. First you have to know how much your losing to know if it is worthwhile and that is my point."; so in this case it would be essential to find the statistical data relevant for our debate. If the amount of welfare fraud is minimal though, then it can be excusable for pragmatic reasons.