> Building part of a killing machine isn't really something you can defend

Of course it is. I don't personally have an issue with folks who worked on weapons of war. Particularly if they're honest with themselves about the work they did. Doubly particularly if they felt a sense of mission in it.

And in an integrated culture and economy, the difference between a person who happens to work at a company with an evil project in a random division and a person who grows complacent about politics with their non-problematic job is thin to the point of vanishing.