Any parent worth their title feels that tinge of guilt whenever they correct a child for a transgression that they themselves struggle with. Should a father with an explosive temper never correct his son who displays the same malady? Is that father hypocritical to correct? Of course not, but we hope he will correct with the humility of a fellow struggler.
Perhaps at the end of Genesis 34, Jacob's babbling about his reputation and fear of retribution is actually a veiled admission of guilt that he has inadvertently trained his sons to react deceptively to any difficulty in their lives.