Morons and Child Annoyers
In 1936, a pervert was called a moron and a pedophile was merely a child annoyer. This article describes the final exploits of one Mr. Keane, who, following a "spectacular battle," was killed, even though he was "bent on thievery rather than rape."
Read this article from the Chicago Tribune in the voice of a radio broadcaster from that era and it all makes sense.
This is the height of the Great Depression. That kinda destroys everything I had previously thought. So, it wasn't all, "Brother, can you spare a dime?", soup lines and helping out hobos by offering them odd jobs around the house in exchange for a meal when they came calling at the back screen door while Grandma was cooling a pie on the kitchen window sill, the very window the moron would then peep into, though likely bent on thievery rather than rape.