This is something that I've known all along

https://www.newscientist.com/article/mg22730360-800-applied-minds-why-engineers-are-the-real-heroes/

 

An engineer designed the spear, but there must be a soldier to thrust it into the chest of the enemy.
An engineer designed the rifle, but there must be a soldier to fire it at the enemy.
An engineer designed the missile, but there must be a pilot to lock on, and press the fire button.

It takes two to tango.

 

An engineer designed the spear, but there must be a soldier to thrust it into the chest of the enemy.
An engineer designed the rifle, but there must be a soldier to fire it at the enemy.
An engineer designed the missile, but there must be a pilot to lock on, the press the fire button.

It takes two to tango.

It also takes a damsel in distress for prince valiant to spring into action