AME, I seriously couldn't agree more, and have wondered the same thing on occasion, when I see posts like that. I'm the only woman on my very small 3-person team at my office, and I speak highly of my boss and officemate, both of who are utterly fantastic to work with. I've told my husband how great they both are, and while there's nothing going on (OK, I find my officemate fairly attractive), if H ever got suspicious, and told me to quit my job, I wouldn't. I couldn't, unless he wanted to support the entire household for however long! I've been laid off twice since 2014, and he still expected me to contribute my share, so i highly doubt that he would support the household. Combine that with the fact that it isn't easy to find a job in my field, and no, I wouldn't readily quit my job. I can't think of anyone who can just up and quit, actually. And no, I would never ask hubby to quit his job either!
So OP, the above poster gives a good example here. Her job is clearly more important than the marriage without her even knowing that it is. She believes that she COULDN'T give up the job because jobs are hard to find. Maybe so. But it does present a possible recipe for disaster.
the small team she works with - her office partner is attractive to her. She praises them to her hubby. I guess this happens. They both are nice people. She sees them at work and they are nice because they all have to work together. None of them leave their mess lying around the house to clean up, or fail to put out the garbage, or have to deal with sick children - they are nice! And attractive!
Now possibly already suspicious hubby and her go through one bad patch. (Probably have had more than one - normal in marriages). If the "attractive" one of these nice people is a predator and finds that the poster is attractive to him, this marriage is toast. He will say nice things to her and bad things about her husband, she will agree, she is already attracted to him, and all this becomes very exciting. She even thinks of leaving hubby for attractive office partner. Again all of these things do happen.
Its what happens next that is important. She gets discovered and is asked to leave the job by hubby because in order to repair the marriage, she needs to be away from the predator. But no! She cannot "afford" to leave the job because after all, jobs are hard to find, this pays well, she didn't actually sleep with the guy (maybe just a kiss although she was thinking of leaving hubby anyway) - so no! She will not leave her job. How do you think the marriage is going to end up. Hubby either divorces her immediately or lives in pain and with a lot of resentment for her. She thinks less of her hubby and eventually also wants to divorce him. In any case the financial situation is not going to be good - its going to be worse than it was before. Two homes, split household, divorce expenses etc.
Now if she had left her job, she would only do so if she valued her marriage and family above everything else and really was in love with and wanted to be with her husband. This would give them both a chance to fix an EA. And find a way to manage financially. So all about choices.