The largest is police, which benefits everyone.
Second is fire, which benefits everyone.
Third is judicial, which benefits everyone.
I disagree with the quoted portion.
How does the police benefit everyone? Seems they really only benefit the judicial. Granted there are very rare occurrences of individual officers rising to a hero status, though that is not necessarily because they are police, it is because they are heroic individuals.
Fire, granted, they do genuinely serve a good... especially the volunteer firemen, who are not compensated by extorted taxes.
Judicial?!? Now sir, you surely must be joking!
Actually, of all the items you mentioned...
Welfare probably serves the greatest good, in terms of numbers at least. Though there is this concept, called charity, which is vastly better suited for the purpose. I think maybe we agree on that?
Welfare allows criminals to remain criminals, and still survive. There is a reason why places with the largest welfare system, have the highest crime rates.
Of course police serve the greatest good to the greatest number of people. If you want to test that theory, let's remove all police, and see what happens.
Oh wait, we kind of already know. New York used to be the crime capital of the country. Then some crazy mayor decided to drastically increase police patrols, and shockingly crime went down.
Then there was Detroit. And because of declining income, policing was cut, and shockingly crime increased. Why this is a surprise to anyone, I don't know.
Yes, police is a benefit to everyone. Even the homeless benefit from police.
Yes, Judicial. Not joking. You have no idea what this country would be like, without a judicial system.