Unfortunately one major sector of image machine learning is CSAM scanning, which was also recently revealed as one of the major funding parties for the planned legislation intended to allow scanning all private communication in the EU. But generally i agree most of the things they will see might not be too bad by themselves but its still a job no human really wants to do of their own free will. If they do decide to do it, it is either out of a lack of choice or because they dont know what they are getting themselves into.