@derechhamelech
There is no “generally” that you claim is assur. Each person should consult his own Rav whether or not they should go. Do you have a problem with that? You can’t pasken out of a sefer unless you are a…posek. You might think you know what it’s saying but you might not. and I’d like you to show me where TMB said that.
Are you saying that your wife went to college, but her job doesn’t require the education or that she didn’t actually go to college?
If so you are very lucky and I hope that it continues. But please realize your case is very rare. But one more thing-do you pay full tuition? Because if you don’t than you are being indirectly supported by people with a college education, and have no right to question the decision’s of those who do.