Consider that some of the world’s most successful planes and spacecraft like the 747, the Saturn V moon rocket and the SR-71 were products not of computers, but of slide rules and top engineers.
“Slide rules and GREAT engineers” a CENTURY ago made wonders designed on pads of paper, under gas or sun light, and made using machines powered by water wheels driving forest of leather belts. And vast amounts of those things are still working today in 2016.
Last week I serviced and repaired a Waltham pocketwatch designed and made in 1857——yes 1857...three years before the CiVil War. The watch stood at the wall at Gettysburg , where Picket’s charge was repulsed.
Over a century later, it still runs like new, still accurate and dependable. That is ENGINEERING.
Btw, computers have been used since the late 30s including for all the projects you mention.
Even assuming your statement is factually correct, one might point out that the computer is a modern form of a slide rule. It is designed/engineered/programmed by human engineers.