There is that, I suppose. I don’t need the job, so would likely be a bit more forthright in my opinions. Which could be refreshing.
I had that exact scenario a few years ago. Applied for a job, maintaining taxi communications and control systems. When I went for the interview they offered minimum wage, had barely adequate facilities to perform my job, and wanted me to be on standby 7 nights a week, for no extra money unless I got called out. They offered double bubble for the times I would be called out, but considering I lived 45Km from where the office was, it was pointless. The boss, doing the interview said he needed an answer straight away, because they had another applicant who was keen to take the job, and also had excellent technical skill.
I just stood up and said "Well best you put the other guy on, because he obviously desperately needs a job" end of interview.