What did he do that might make someone build a monument to him for service to education?
He is the inventor of and founder of Scantron.
Yeah, I am both under and overwhelmed too.
He did lead an interesting life … born in Poland, mother killed early in WWII, and was a tank driver with Polish forces. He moved to the US in the 1960s, and founded Scantron in 1972.
On one hand, his method of automated test grading allowed for fairly objective and anonymous grading of tests. On the downside, it made standardized test easy, and while standardized testing existed before Scantron, it exploded as a result of being able to make tests cheap and easy to grade.
As with many inventions, you take the good with the bad.