Shinjiro tried!! To get involved with "Various things and activities"! This includes participating in the date auctions helping Vash and Knives on the farm, andhelping cleanup Aldrip in preparation for the festivities— and absolutely none of those were with conviction as requested in his sentencing.

.... Though in more meaningful but less action actions, he had a talk with Scott about Scott's power control episode, listened to Mikey's situation, and then talked to Dara about her loss of control and wish to isolate herself, and in general has been forced to be way more self reflective than he's ever enjoyed being. Being repeatedly put in the position he's put his own friends through has certainly not gone unnoticed.