demoralization

The act of corrupting or subverting morale, discipline, courage, hope, etc., or the state of being corrupted or subverted in morale.

the demoralization of an army or navy

The act degrading the moral value of something.

The chazzan [...] abandoned all functions connected with his office, and confined himself to his music, constructing dazzling tunes in order to capture the attention of the mob. To put an end to this demoralization, at the request of the old community of Bamberg, Rabbi Moses Minz wrote detailed regulations for the chazzan.