What is Hawthorne’s point comparing Hester’s and Dimmesdale’s reactions to their sin?

Hester's sin is on display for the whole town to see while Dimmesdale keeps his sin hidden. Hester and Dimmesdale act as character foils in the context of their sin. Hester uses and embraces her sin to remake herself while Dimmesdale lets his sin eat at his soul and slowly kill him.