Yes, Cap K there is quite a few dollars to be made in the lecture circuit and through book deals ... IF people want to hear or read what you have to say. Iffy business that!

As to taxes : before WWII it cost a child 10 cents to go to a (double feature) movie with cartoons and a newsreel to boot. In 1942 a penny tax was added to "help the war effort." It was increased a couple of times and is still being collected.
Reminds me of the time I was crossing a toll bridge on the only road to our summer vacation spot ... I asked the toll taker "Haven't we paid for this bridge yet?" And he responded. "You sure have, but now we need to paint it."