One of many things I do to annoy my wife is to sing along to the Eagles song Desperado. When Henley gets to the line "And freedom, oh freedom, well that's just some people talkin'", I do my best Cloud William right at the "freedoms".
But one thing I always wondered about is Captain Tracey. We've learned from several episodes that starship captains are culled from a large group of officers, and are exceptional candidates in every way.
Captain Tracey was not only breaking Federation directives, he was murdering men in cold blood with no compunction. OK, he did lose his crew, but he was over the top vicious.
That is what makes Tracey's turn all the more disturbing.
I don't know if the Federation could come up with a good enough test for the extreme psychological damage of losing ones entire crew.
Probably enough to break any man or woman.
The same happened to the Captain in the 'Doomsday Machine' episode.