Sun Mo understood Fang Duanwu's feelings. His mother was going to die so he wanted to get the 1-star great teacher title to tell her that her son had achieved something and didn't lose her face. Moreover, her son's future would be stable, so there was no need for her to worry.
Fang Duanwu felt that by doing so, his mother would be able to die with a smile, but he had forgotten that this occupation was one that educated others, and integrity and reputation were the most important aspects.
This also meant that great teachers could even forsake their lives to safeguard their reputations.
Why would the Daynight Starlord find it so difficult to recruit students despite being a secondary saint?
It was because of his reputation. Young people with lofty ambitions wouldn't lack teachers. Why would they choose to follow him and become targets that everyone wanted to hunt?