In my experience, the type of child you describe is most likely from a family where both parents work away from home in full-time jobs. Getting children to behave is a difficult task for parents who are often exhausted. Bribery is often the preferred method of discipline.
Discipline means teaching. Bribery, as you use the term, means teaching children that if they act badly, they will get goodies. (Junior starts acting up. Mommy says if you stop, I'll give you X. Junior behaves decently for a while, then he thinks "If I act up again, I'll get even more goodies. So he starts up again. Repeat vicious cycle. Lesson to parents: don't start it in the first place.) I cannot think of a more disastrously wrong thing to teach a child. The two income household is often not a necessity, unless you think having all the latest video games, fad toys, etc. is "necessary". Not that anyone at FR would do that...
AB
If people aren't going to dedicate the time and energy they shouldn't have kids. If they've had kids then they damn well better find the time and energy it takes to raise them right.