A Billionaire said “I will always choose a lazy person to do a difficult job because a lazy person will find an easy way to do it”. What is a real example of this?

I had a math teacher that actively encouraged his students to be as lazy as possible, defining lazy as actively searching for ways to do as minimal work as possible. His logic was that, the way math is now, it could always be simplified and still work the same, someone just needs to be lazy enough to find that.