Steve Jobs

Editing out the controls. Jobs pushed the Macintosh team to build a mouse-driven graphical computer for ordinary buyers in 1984, and on his return to Apple oversaw the iPod's click wheel and the iPhone's multi-touch screen in 2007, each removing buttons and settings most people never used. His contribution was product judgement more than engineering, relying on teams led by people such as Tony Fadell and Jony Ive. The price was a closed system controlled by Apple. He died in 2011.