USTR is basically Boeing's private agent, even though that's a USA government office. That has cost USA consumers billions. Also we used to have an FAA we could trust, and now we don't. Also as sibling comment observes they get vast portions of "defense" spending.
Perhaps it's yet-to-be-realized. Boeing is a major defence contractor and "too big to fail."
Ultimately they'd get a government bailout of some sort if push came to shove.