If the sole reason for Jesus' incarnation was to just be a good example to others, you might have a point. But, Jesus came to earth as a man to be the once-for-all sacrifice for sin. He knew why He came, how long He had and when He would die because He is Almighty God. Getting married and having a family would have circumvented that purpose and would have been completely irresponsible leaving a wife and children destitute. No, Jesus was NOT married and had He been, there wouldn't be any reason for omitting the record of it in Scripture. A good place would have been Paul's letter to the Corinthians when he said:
Do we not have a right to take along a believing wife, even as the rest of the apostles and the brothers of the Lord and Cephas? (II Cor. 9:5)
//If the sole reason for Jesus’ incarnation was to just be a good example to others, you might have a point.//
And that is the core of LDS Christology.