Do you really think a little child knows or cares what Daddy does for a living?
They care that they have a Daddy and a Mommy who love them, and love each other. They need to see and experience both masculine and feminine parenting styles to understand how to parent as adults.
As a man, and a grad-school educated professional, and a husband of another grad-schoool educated professional, and a father of 4 ... I can see why you might have trouble finding a husband.
What I get from your posts is that you think Dads are optional (meaning you'll feel free to dump him and leave with the kids) and the most important thing about a man to you is his ability to earn big bucks (which means you'll ditch him if he's ever unemployed or unable to work for health reasons). Maybe I'm wrong, but that's absolutely how you come across.