How is the poem inchcap rock a didatic poem?

"Inchcape Rock" is considered a didactic poem because it teaches a moral lesson. The poem illustrates the consequences of greed and betrayal through the story of the Abbot of Aberbrothok placing a bell on Inchcape Rock to warn sailors. When Sir Ralph destroys the bell out of greed, it leads to his own demise when he later gets shipwrecked on the same rock. The poem serves as a cautionary tale about the importance of kindness and the repercussions of one's actions.