Final answer:
Samson's critique of employing informal workers centers on the compromise of service quality due to factors like lack of regulation and formal training, alongside concerns about fair treatment and labor protections.
Step-by-step explanation:
According to Samson, the employment of informal workers has been critiqued because it compromises service quality. This critique emerges from various concerns, including the lack of formal training and regulation in the informal sector, which can lead to inconsistencies and a reduction of service standards. Furthermore, informal workers often do not have the same level of labor protections or job security as those in formal employment, posing moral questions regarding fair treatment and equity. In spite of the criticisms, the informal sector plays a vital role in economic survival for many, particularly in low-income countries, and offers some level of independence for workers who might not find opportunities in the formal sector.