He was the reputed "father" of the God-Man, Jesus Christ. That's a great responsibility, what if he had failed to be a good father? He taught Jesus his trade, how to speak, he fled into Egypt with him to save his life, what if he had not saved the Lord's life?
He's also great role model for those of us who live ordinary lives, the silence concerning Joseph in the Gospel's tells us how ordinary he was as regards fulfilling daily duties, he did nothing great in the eyes of the world; he was a "Dad" whom Jesus obeyed.
"And seeing him, they wondered. And his mother said to him: Son, why hast thou done so to us? behold thy father and I have sought thee sorrowing. 49 And he said to them: How is it that you sought me? did you not know, that I must be about my father's business? 50 And they understood not the word that he spoke unto them. 51 And he went down with them, and came to Nazareth, and was subject to them. And his mother kept all these words in her heart. Lk 2: 48-51
Don’t mean to be contrary, but there is a lot of argument from silence. I recall someone, perhaps several someones, developing a rather extensive thesis about who he was, and what he did. I am wrong in seeing a significant amount of extrapolation about how he was and what he did?