There is nothing misogynistic about Ninja's choice. He has made a choice to not let his work life affect his personal life more than necessary and wants to keep his marriage free from anything that could affect it in a detrimental way. I respect that. If my boss demanded that I go on trips solo with a female coworker and had to spend much time alone with her, then I would consider resigning to not cause any harm to my wife or our relationship. It would not be misogynstic towards the female coworker, but rather a realistic appreciation of human nature and a desire to minimize risks.