Habituation

 https://nafshi.org/mishlei-13-20-habituation/

Thus, after a period of repeated sinning, the process of habituation desensitizes him to the seriousness of the sin, and it is no longer a struggle. Mishlei describes the phenomenon of habituation in terms of being pursued by the evil that the person has created through his own sin. Something similar is happening when he becomes desensitized to the value of the good that he is doing. However, it is not quite the same.