Why did Rex Tyler pick a moniker that tells every supervillain and criminal the serious limitation he has? Isn't this like Martian Manhunter calling himself "Fire mortal" or Alan Scott being "The AntiWood man".

I've only read a few stories about the original Hourman, and I get the premise, he's a chemist that gets the powers of Golden age Superman for one hour, and he has to do everything he can in that one hour. He has a radio that allows him to receive calls about situations, and allows people to petition him for help through letters. He has a squadron of Minute Men all over the country, kids that can gain the same powers for one minute.

Later on other writers explored how Rex Tyler became addicted to this PED. All of that is fine and dandy as a premise for a character, but has there been a better explanation for why he decided to present himself to the world as Hourman? Wouldn't villains simply choose to way him out until his powers were gone? Wouldn't villains orchestrate plans in order go make him waste that hour, and then they would start the actual heist?