Earlier quoted context omitted.
The risk of losing 3 dudes is greater than $450m.
People put valuations on lives all the time in risk analysis and I've never seen a cost even close to $100m. DOT puts it at 13.2m: https://www.transportation.gov/office-policy/transportation-...
We've never had an astronaut crew get stranded on the moon. though we got close with Apollo 13. If/when that happens for the first time, you'd better believe the entire planet will be paying attention.
Just the congressional inquiries alone will set the space program back by decades.