Keep in mind she answers to Musk, you can't assume she had the leeway in this instance, especially since he likely got a bee in his bonnet about it and took an uncompromising position.
This seems like an instance of "Something must be done; this is something, therefore it must be done"—more high-quality rocketry and space expertise clearly is a benefit to humanity, at least in the long term, but that doesn't necessarily mean that SpaceX in particular needs to be the organization to do it.
Agreed, but they're pushing things forward. If we waited for Boeing or the like who are fed by fat, lazy government and military contracts things would never improve.
That's fine, but you don't get a pass. If you choose not to fight that battle, then you get to wear the outcome too - that's what was decided at Nuremberg as well.
She also answers to the laws of the society she lives in, which supersede and contractual obligations (or, rather, nullify them).
I've read a book or two that interview/discuss-what the elderly and what regrets they've had about their life: one of the common ones is that they didn't live their life with as much as integrity as they'd like to.