The repentance and rectification for such flaws is the opposite of passivity. It is to be proactive and to take preemptive initiatives known as Zerizus. In the case of the Nesiyim, this means being the first to speak out, the first to do the Mitzva! This they accomplished at the days of Inauguration of the Tabernacle when they were quick to offer their gifts having learned from their mistake.
However, like the Nesiyim of years gone by, may these Leaders as well rectify any lapses and be the most passionate, the most industrious and forthcoming to speak out with zealousness and properly guide the people in the just path of Torah and Mitzvoth!
Most of these emails are posted on Shemittahrediscovered.blogspot.com