Beracha

 Rambam (Prayer 15:06) A priest who does not have any of the factors which hinder the recitation of the priestly blessings mentioned above should recite the priestly blessing, even though he is not a wise man or careful in his observance of the mitzvot. This applies even though the people spread unwholesome gossip about him, or his business dealings are not ethical.He should not be prevented from reciting the priestly blessings because reciting these blessings is a positive mitzvah incumbent on each priest who is fit to recite them. We do not tell a wicked person: Increase your wickedness by failing to perform mitzvos.

Rambam (Prayer 15:07) Do not wonder: "What good will come from the blessing of this simple person?" for the reception of the blessings is not dependent on the priests, but on G-d, as the Torah states: "And they shall set My name upon the children of Israel, and I shall bless them." The priests perform the mitzvah with which they were commanded, and God, in His mercies, will bless Israel as He desires.