What would be the consequences to an employer of having highly demanding jobs with low security, unfair pay, and little control?

Questions

1.   What would be the consequences to an employer of having highly demanding jobs with low security, unfair pay, and little control?

2.   How could fish-processing plants like the one described here improve jobs so they can fill vacant positions profitably?

SOURCES: Elizabeth Dwoskin, “Do You Want This Job?” Bloomberg Businessweek, November 14, 2011, pp. 70–78; Stephen Long, “Bad Job Worse for Your Mental State than No Job at All,” PM, June 9, 2011,