Likutei Moharan, Part II 1:7/ליקוטי מוהר"ן·תנינא א׳:ז׳

17. Nevertheless, a person must be very careful not to assume a position of authority. In attaining fear one acquires a strong desire to influence others, because “anyone who fears Heaven, his words are heard” (Berakhot 6b). And because his words are heeded, he longs to be in a position of influence. But he must be very careful not to assume such a position, because being in a position of authority snuffs out the prophetic inspiration, namely, the angel created through fear.

2This is what Yehoshua said to Moshe, when [Moshe] was told “Eldad and Meidad are prophesying in the camp.” [Yehoshua said,] “My master, Moshe, kla’aim (destroy them)!” (Numbers 11:27-28). Rashi interprets [kla’aim] as: burden them with community responsibility and they will perish [of their own accord]. This is because community responsibility, i.e., a position of authority, erodes and snuffs out the flow of prophecy. Thus rearranging the letters of MaLAKh [spells] KLa’AiM.