You say that "implementation is a matter of hiring the right tradesmen/tradeswomen", then you go on to list a whole bunch of people who implemented their own ideas. Thomas Edison didn't just have the idea for a lightbulb, he invented it. Henry Ford personally built his first car as a personal project. Sir Richard Branson got started selling records from the "boot" of his car. Larry Page personally co-developed Page Rank.

I'm not sure how the military commanders (or Frank Lloyd Wright) fit into this, but every entrepreneur you listed was very much a "technical founder".