If she had been given that money by a human while Earthside, you'd have a point.
She was given the money by an AI while in orbit...and off duty, i might add, unless being half dressed in your own quarters counts as on-duty these days.
I'm pretty sure her CO is not so daft as to assume that the AI upon which all their lives depend is for some reason going to subvert station operations via bribery to a low ranking officer. Considering their physical autonomy, it probably never gets farther up the chain than that.
Hell, for all we know, Station already told him about it and received approval.
She is on duty. She is always on duty when being stationed. That's being part of military. She gets time to relax, free time but she is never off-duty when being stationed. Just like soldiers ain't off-duty when playing pool in Iraqi base.
so
she is off-duty as in having free time for herself during that particular part of the day
but she is on-duty by being part of military on assignment. Two different on-duty concepts.
not sure how being on orbit changes anything tough?
Why would CO agree? Where is the gain for him/for military in that? I can only see drawbacks.
My guess is Station himself has probably set things up in such a way as for that to be impossible. They might kick her out of the service (not bloody likely...pretty sure Jeph doesn't give two shits about this notion), but the money's probably untouchable in a legal sense.
probably true if he is 'smart' enough to do that. he does act a bit reckless so we can't be sure he did all proper paperwork (she is going to have to pay tax on that and IRS will check everything very carefully. You can't just give 4 million dollars worth of stocks to someone)
but it is possible.
There is also another problem.
Most lotto winners lose the money fairly quickly. Some even kill themselves because they can't handle so much wealth. It depends on how rich she/her family was before and how well she can handle this situation but the odds are against her.