In Shakespeare's famous play Richard III, the title character's last words are "A horse! A horse! My kingdom for a horse!"
It's a little hard to understand out of context, but it indicates that the power to rule over a kingdom means nothing if you have no way to escape the enemies you've made in the process.
Richard's lack of a horse in that moment proved to be his undoing, but rather than trying to bargain with the fates, others just went ahead and built the one thing they needed for themselves.
These visionaries may have only wanted to solve a simple problem around the house or they may have come up with something that all of us can benefit from, but the point is that they did in unexpected ways.
And we salute them for it.