Unemployed Philosophers Guild

There’s a bad joke: The engineer asks ‘how can I build that?’ the scientist asks ‘how does it work?’ and the philosopher asks ‘do you want fries with that?’ In all fairness to the Philosopher, he’s probably not referring to ontological French fries, but the 18th centrury thinker Jacob Fries. Anyway, some people think unemployed philosophers are funny. But why? Was it funny when philosophers gave us Democracy, Justice, Truth, Science, a sensible analysis of intramundane social practices or Freudian Slippers?