Wrong! Trickle down economics has definite evidence that it does not work.

When I worked as part of a survey crew in the '60s. The party chief told us he was going to find the gas, electric, water and phone lines under the ground of a property we were surveying. He did it and later he had us do it for the sake of learning that anyone with an open mind could do it. He used rods make of bent welding rod held on our pinkies and in a ring formed by our index fingers and thumbs. I have since done it with rods cut from bent coat hangers. When we compared our results with an earlier survey they were spot on. It was eerie seeing those rods line up with objects we sought.
It wasn't faith, it was a suspension of disbelief.