Bringing up a child is hard work. You want them to be someone useful when they grow up and have a good life. In addition to that you would want them to have high moral value so that they will take care of you when you gets old.
Putting respect whilst you educated them about life is crucial. It's the part they will always remember when they mature and starting their own life. When a child is raise based on fear they will retaliate in a manner of breaking the law, lack of ethics and some even became dangerous criminals. All this because what they have been taught when they are younger.
They will have no respect for law, people and even family members. So you want to put respect into whatever you do in bringing up your child. Let them know how much respect can bring a different in life.