"It's never right as a parent to say you where too busy at work all the time therefore you have no time for your kids."
I think that this here is an issue. The reality for some people. Is that they do not have time for their kids. Unfortunately they may be a single parent or live in an area with a high cost of living. And they have to work all the time to just put food in a kids mouth.
Not everyone is fortunate enough to spend time with their kids.