If anyone ever tries to justify big government, just mention the effectiveness of the Do Not Call program.
I submitted a lot of numbers to them over the years, but there is no procedure to follow up on your report to see what (if any) action was taken. The calls have not slowed or stopped.
I strongly suspect that the DNC system (double entendre, anyone?) is a jobs program for the otherwise unemployable relatives of the connected, probably no-show at that.