Midrasch zu Tehillim 16:10

Whoever causes a community to do good, no sin will come through him; and he who induces the public to sin, no time nor opportunity will be given him to do repentance. Whoever causes a community to do good will never be the cause of sin. Why so? Because he should not be in Gehenna, while his followers will be in Paradise; as it is said (Ps. 16, 10) For Thou wilt not abandon my soul to the grave. Thou wilt not suffer Thy pious to see corruption; and he who inspires the public to sin, no time nor opportunity will be given him to do repentance, — so that he should not be in Paradise while his followers will be in Gehenna; as it is said (Prov. 28, 17) A man oppressed by the load of having shed human blood will flee even to the pit: they shall not support him.