Bucky understood tools are amoral:
"The military also buys soap and water, but
that doesn’t mean soap and water must be boycotted
by those who hate war. They also buy pencils, and
it’s perfectly clear to me that a man could use a
pencil as a dagger or he could write a prescription to
save a child’s life. So how tools are used is not the
responsibility of the inventor."
—Bucky