Good and bad tzadikim

 Netziv (Introduction to Bereishis): Bereishis was called Sefer HaYoshor (the Book of the Upright) by the prophets. The praise of Uprightness is to reinforce G‑d’s judgment in destroying the Second Temple which as a generation of tzadikim and chassidim and those devoted to learning Torah - however they were not Upright in the mundane world. Therefore, because of the baseless hatred in their hearts to each other, they suspected that whomever they saw who did not conduct himself according to their opinion in Yiras Shamayim - must be a heretic. Consequently, this led to much killing and all the evils in the world until the Temple was destroyed. Thus, there was an acknowledgement of the Uprightness of G‑d’s judgment in that He would not tolerate tzadikim like these. Rather He wanted tzadikim who were upright in the world. Because even if the non‑upright tzadikim were motivated by religious consideration - such conduct destroys the world.