I used to work with someone who'd previously been a manager for development of one of the defensive systems.
One time, the manager mentioned that morale on their team back then had been low, and the work was maybe feeling too abstract, so manager had taken the entire team out to see a test/demo of the real system to which the team was contributing. And something about that re-energizing them, as we'd guess.
(If they could've seen a little into the future, they would've seen their system on TV news, shielding real civilians from a real aggressor's weapons, and I guess there would've been no morale problem whatsoever. I'm not sure I can accurately imagine all the feelings when something like that was successful.)
I remembered that story when I started feeling in an enthusiasm slump, years into computer work involving aviation. Simply making photo prints for my office of some of the more exotic aircraft I'd been working with only via code and data, and a trip to the airport to see some more conventional airliners and operations, made it more real/relevant at some level, and was a significant boost.