It may have been different when you were in but I saw a lot of it. One of our more infamous cases of a refusal to obey an unlawful order was when a SNCO correctly refused a direct order from an O-6. The SNCO was given a Letter of Reprimand which would have effectively ended his career but he knew his stuff. He refused the LOR and asked for a court martial as was his right.
The court exonerated him on day two.
The O-6 was done. The word on the street was that the MAJCOM and numbered Air Force were livid when they found out he was told that the order was unlawful and that he should rescind it. His real crime was that he didn't warn the Wing Commander that it was going to blow up. The Wing Commander was being reviewed for his next star when it all went down. He got the star but went forward with a cloud.
The O-6 retired not long after. It was clear that he wasn't going to get promoted and no one was lining up his next position.
A junior JAG captain got slapped but was cut some slack because he was so new. Two senior JAG captains didn't make major and while no one could definitively say that was the reason, it was odd that both of them didn't get promoted in the same promotion cycle.
If you don’t have a copy but count on the online copy that the military maintains you will discover in the future that those records will come up missing or damaged or incomplete. Ask around for the people making claims from Vietnam, Iraq, etc.
You never heard any of your fellow airmen refusing the Clot shot?
How many unlawful orders could you have been given?