Unless the father is deadbeat and uncaring as you put it, then yes of course they need to be around their fathers.
Children live what they learn and if the parents teach them love they learn love, if taught lies they learn to lie. Its just normal. Children love their parents unconditionally and anything the parents say or do is right in the eyes of a child, until they become a teen of course. (then they hate you, and if that happens, then you know your doing something right)
However if the child lives in an dysfunctional home where the father is never there, the mother is gone and they are left here and there, its only normal that the children will be unstable and withdrawn. However with that said, I do believe that a father can be of great importance.
WE has mothers are naturally the 24/7 parent and its just an everyday thing to the child but when the father steps in and does his part, the child feels loved, stable and secure. Not that they don't with the mother, but its like having a cigarette every day, then that one day a new brand comes out and for a time being its like a new thrill ride on the merry go round.
Daughters grow fond and close to their fathers, they become the apple of a fathers eye, if they are not around, they not only hurt their children but they hurt themselves. Children are here one day and gone the next (moved out, grown up) then you will wish you had spend more time with them but its too late.
I think any kind of uncaring, dead beat parent is better off away from any child actually.