Did you grandfathers actually told you that they worked like dogs and were poor?
I think a lot of people don't share your story and don't play with data for fun all day. Instead they still put 40 hours/week plus unpaid overtime into a job they hate that makes them unpleasantly tired.
Ok, so income tripled from 15 to 45. How about purchasing power of that income? How much housing could you buy for that income back then an now? How many children could you raise back then and now for that income?
How does tripling even compare to increase in efficiency of industrial and agricultural production?
I think a lot of people don't share your story and don't play with data for fun all day. Instead they still put 40 hours/week plus unpaid overtime into a job they hate that makes them unpleasantly tired.