If they're are worried for their lives, then a career at Boeing may not be that important. They're extremely skilled engineers/scientists. It's unlikely they'd have issues finding serious work.
They're both about 60. Since they're both fit enough to be astronauts, I think we can say their life expectancy should be at least 85. Perhaps substantially longer with some medical advancements or age reversal.
Look at what SpaceX is working on these days (Starship), consider that AI & robotics will likely accelerate progress, and I would say that you can definitely expect affordable and perhaps even relatively comfortable space travel within their lifetimes.
